* Rust: Add idiomatic iterator for Vector type

* Add comments explaining some implementation details

Found by the https://github.com/OSGeo/gdal/blob/master/gdal/scripts/fix_typos.sh
script on the internal copy of flatbuffers inside GDAL

* Rust: Fix Copy and Clone impls for a few generic types

* Add tests for Copy+Clone

* Wrap Copy+Clone checks in a #[test] function

- `--clean-first` runs `clean` target to remove previously generated files
- missed `monster_extra_generated.h` file added to the `flattests` target

- remove not necessary file `monster_test_generated.h` from sample_bfbs.cpp

* Avoid intentional unsigned integer overflow getting caught by sanitizers

* Adapt from suggested compiler compatible solution

* And a third way :)

* Add forceDefaults opt to python Builder

* Add test functions for force_default option for python builder

* Simplify

* Add force default test for UOffsetTFlags

* Annotate getters with @Pure when --java-checkerframework is specified.

Together with @Nullable, this allows users to use static analysis tools
like CheckerFramework to catch NPEs caused by unset fields.

* Don't annotate vector-of-tables item getters with @Nullable.

Since Flatbuffers don't support null items in vectors of tables.

Change-Id: I6fd6283b616c7a39bb878b1610e4ddf6e208fa0a

* byte buffer factory returned buffer is used instead of the requested capacity

* byte buffer factory returned buffer is used instead of the requested capacity

* Comment fix

* Fix C/C++ Create<Type>Direct with sorted vectors

If a struct has a key the vector has to be sorted. To sort the vector
you can't use "const".

* Changes due to code review

* Improve code readability

Change-Id: Iacc0c8513af80a736700e6cbaf513ebdf8e3ac89

In my benchmarks it shows deserialization performance improvements of
around 7%

Empty objects that inherit from Sized would try to access internal
ByteBuffer when Sized::size was called. So we add a single byte in
the empty buffer, so when size() is called it would return 0

Change-Id: I59ff072e526fc63b3215767a4d4a2a8944b65654

Changes the use of `LookupStruct` to `LookupCreateStruct` in
`ParseField` to also detect when collisions happen in namespaces.

Alongside --binary and --json, an additional
switch (--flexbuffers) can be passed to convert
data using FlexBuffers

Fixes build errors from using newer crate versions with an old Rust version.

* Adds XOPEN_SOURCE for PATH_MAX and POSIX 1993 for stat

These are the only two required extension for compilation of
flatbuffers using -std=c++11 instead of gnu++11.

* Sets _XOPEN_SOURCE to 600 and enable POSIX2001 for fseeko

The real position of a string is  calculated by using the indirect() method,
which should be based on parentWidth and not byteWidth, as it was implemented.

We are also fixing the flag BUILDER_FLAG_SHARE_STRINGS on FlexBuffersBuilder
that was set as '1', same value as BUILDER_FLAG_SHARE_KEYS.

* Draft with Array specialization (#5508)

* Array specialization + SFINAE to fold copy-paste (#5508)

* Add implicit specialization of Array<scalar> and Array<struct> (#5508)

- Tag dispatching is used for implicit specialization
- Array<scalar> and Array<struct> have different iterators and accessors
- Array<scalar> and Array<struct> have different Mutate() methods

* Add implicit specialization of Array<scalar> and Array<struct> (#5508)

- Tag dispatching is used for implicit specialization
- Array<scalar> and Array<struct> have different iterators and accessors
- Array<scalar> and Array<struct> have different Mutate() methods

* Java: Added access object for vector of struct and vector of tables.

* Java: Workarounds removed when accessing the union vector.

Fixes warnings caught in:
https://buildkite.com/bazel/flatbuffers/builds/863#cff87e1d-b976-4734-8157-4b6d88c7b5e1

Change-Id: Ie94386ff8e10fd2a964bd9155139b50953746a37

Change-Id: Ie82abaf178495c4692e7d10be6b4a13f2fa1bee6

* Add element size parameter to __vector_as_arraysegment

Add element size parameter to __vector_as_arraysegment fixing issue where VectorAsBytes returns incorrect size span for multibyte element types.

* Update codegen

Update codegen and Table to return typed span.

* update test files

update test files

Also add a FlexBuffer constructor to simplify usage

Together with @Nullable, this allows users to use static analysis tools
like CheckerFramework to catch NPEs caused by unset fields.

* fix: segment fault with empty namespace when generating dart file

* fix: compile err

* fix: compile err

* fix: imported file names

* fix test issues

* fix some language style issues

* Cargo clippy lints

* more lints

* more lints

* Restored a doc comment

* Comment on float eps-eq and adjusted casting

* wrap quotes to enum name map to prevent syntax errorn when enum value is negative

* Add a test that covers signed enum case

* [C#] Fix retrieving enumeration vectors as arrays

* [C#] Don't generate CreateVectorBlock for enums

Use all of the available space in the buffer returned by ByteBufferFactory to allow the factory to keep a pool of larger than initialsize sized buffers. (#5500)