Add move semantics to MessageBuilder, FlatBufferBuilder, SliceAllocator, and vector_downward (#4893)

Unit tests
Update flatbuffers + gRPC build instructions
Update CMakeLists.txt with cmake variables for grpc and protobuf install paths
Update tests for travis build

* Simple ReleaseRaw implemented

* [doc]

* clear_buffer and clear_allocator introduced

* auto

* typos

* rename because of -Werror=shadow

C# support for directly reading and writting to memory other than byte[].  For example, ByteBuffer can be initialized with a custom allocator which uses shared memory / memory mapped files. (#4886)

Public access to the backing buffer uses Span<T> instead of ArraySegment<T>.

Writing to the buffer now supports Span<T> in addition to T[].

To maintain backwards compatibility ENABLE_SPAN_T must be defined.

* Added preprocessor define for C++ if Template Aliases are supported by the compiler

* Revert "Revert "Performance Increase of Vector of Structures using .NET BlockCopy (#4830)""

This reverts commit 1f5eae5d.

* Put<T> method was inside #if UNSAFE_BYTEBUFFER which caused compilation failure when building in unsafe mode

* Revert "Added preprocessor define for C++ if Template Aliases are supported by the compiler"

This reverts commit a75af7352127c261baf0b6cca5cb823e13e78f11.

This reverts commit 7b50004e.

Change-Id: I09d6869c16aa3c7fadc537fc9c76eaa3cf7ee7ea

Change-Id: I836091193485b890710f1df779d4d770f729a27a

* Added 'private' attribute, supported when generating C# and Java

* Added use of 'private' attribute in monster_test

* Build Conan package on Travis CI (#4590)

- Added multi package support on Linux, running on Travis CI
- Only upload when branch is a tag and named "vX.Y.Z"
- Replace Conan injection by Conan wrapper
- Removed os_build os_arch -- Conan 1.0.1 hotfix
Signed-off-by: Uilian Ries <uilianries@gmail.com>

* Build Conan package on OSX (#4590)

- Added jobs to build Flatbuffers on OSX running on Travis
Signed-off-by: Uilian Ries <uilianries@gmail.com>

* Build Conan package on Windows (#4590)

- Added support necessary to build Flatbuffers on Windows (conan)
- Added Appveyor jobs to build Conan package
- Only build Conan package when release (tag)
Signed-off-by: Uilian Ries <uilianries@gmail.com>

* Reduce Conan CI support to simple scripts (#4590)

- Removed msvc 10 x86_64 workaround
- Updated conan remote address
- Added Bincrafters' package tools
Signed-off-by: Uilian Ries <uilianries@gmail.com>

* Add fPIC option on Conan recipe (#4590)

- Add fPIC as optional. It works on Linux and OSX
- Update recipe metadata: author, homepage, license
- Checking for flatc and flathash on Conan package
Signed-off-by: Uilian Ries <uilianries@gmail.com>

* Build Conan package on CI (#4590)

- Add rule to run conan job only for tags
- Run Conan on Linux, OSX and Windows
- Update package tool to new interface
Signed-off-by: Uilian Ries <uilianries@gmail.com>

* Update Conan username (#4590)

- Use google as default username
Signed-off-by: Uilian Ries <uilianries@gmail.com>

* Update OSX version on CI (#4590)

- Use latest OSX 9.3 version to build Conan package
Signed-off-by: Uilian Ries <uilianries@gmail.com>

* Proposing use of C++ header files and functions 

Proposing use of C++ header files and functions instead of C header file and functions. 
Here are few examples for comparison : 

C                            C++
<cstdio>                <iostream> & <fstream>
printf()                     cout 
fopen()                    ifstream
etc ...

Please let me know if there are any comments.

* Updated diff based on review comments

Current version of VC2017 is not setting __cplusplus to correct value, instead they use _MSC_VER, _MSVC_LANG and _HAS_CXX17 macros.

The verifier must be resilient against any corrupt data, so
now using size_t thru-out to ensure any 64-bit offsets can
be represented.

Also added verification of alignment.

Change-Id: I87a22aa6b045c2d83b69b47a47153f2e15ad7e06
Tested: on Linux, also with libfuzzer.

* Update JavaScript IDL generator to remove invalid Closure JSDoc comments

* Revert erroneous changes

* A few more tweaks

* Updated generated code

fixes #4868

This should allow the EnumName* function to work with enums generated
using the --scoped-enum flag.

This allows to build flatbuffers from third_party directory.

* Update for Dart 2.x constants

* Fix strings, update test, add CHANGELOG for Dart

Change-Id: I0c6758db7b4007e84b7ab8daaecd233711df8cab

* Attach header directory information to the "flatbuffers" library target, if the CMake version supports it.

* Cleanup and documentation update

* Eclipse ignore

* TypeScript support

* Prefixing enums

* Test results

* Merged JS and TS generators

* Fixed AppVeyor build problems

* Fixed more AppVeyor build problems

* Fixed more AppVeyor build problems

* Changed TS flag to options struct

* Storing options by value

* Removed unneeded const

* Re-export support for unions

* Uint support

* Casting bools to numbers for mutation

* TS shell tests

* Reverted generates js test file to original version

* Backing up js tests and properly generating test data

* Not importing flatbuffers for TS test generation

* Not overwriting generated js for tests

* AppVeyor test fixes

* Generating the most strict TS code possible

* Not returning null when creating vectors

* Not returning null from struct contructors

* Vector of unions for ts/js

* Sanity check for languages

* Indentation fix + output test files

* Vectors of unions for php

* Fixes to union vector handling + tests

* Fix for strictPropertyInitialization

* Fix for new aligned operator new for gcc >= 7.1

* Not generating imports/ns prefixes with --gen-all

* TypeScript docs

* Missing imports of enums

* Missing TS links

* Enabled vector of unions for java, since it seems to work

* Added jitpack config

* Added obj to vector of unions getter

* Removed unneeded accessor

* Bumped jdk version in pom.xml

* Vector of unions support for c#

* Missing TypeScript doc processing

* Option to NOT force libc++ when building with clang

* Publishing flatc with conan

Change-Id: Ibd970d30b51f77a2ac9c125e400c9f1b19a81cbc

Language, see: http://strlen.com/lobster/ and https://github.com/aardappel/lobster

Adding multi-line option to FlatBufferToString method in minireflect to allow more readable output for larger flatbuffers.

As reported in: https://github.com/google/flatbuffers/issues/4846
Tested: on Linux.

Change-Id: Id5e82dc5a46a681119cfe5a15415d522aac0e1f2

go: give enums their own scalar types

Update FLATBUFFERS_HAS_STRING_VIEW __cplusplus checks to the versions provided by the standard feature test macros. (#4841)

[Go] encode.go performance changes

* Added Get<vector_name>Array() method for accessing vectors of structures in C# using Buffer.Blockcopy().

* Added Get<vector_name>Array() method for accessing vectors of structures in C# using Buffer.Blockcopy().

Added Create<Name>VectorBlock() method to add a typed array using Buffer.BlockCopy() to speed up creation of vector of arrays

New Lua files for namespace test

* fixed c++ style issue

Change-Id: I9cd62b38c8dc526f069726a88baef63e4b0dae57

ForceStringAlignment is useful for memory aligning string fields in flatbuffers.

https://github.com/google/flatbuffers/issues/4815