This is useful because many JSON generators will sort the fields,
cause X_type to follow X.

Change-Id: I00ef3ac05418224fc05aee93e6b3b3597e73ffe3
Tested: on Linux.
Bug: 29221752

Also fixed most codegenerators using the wrong namespace when multiple
namespace were used in a file, with some files not being generated.

Change-Id: Ib42969221239d7244e431cbd667ef69200fc415f
Tested: on Linux.
Bug: 29338474

Fix test using compat.binary_types (from March).

e.g.: { myfield: cos(rad(180)) } is equivalent to writing { myfield: -1.0 }

Bug: 29338398
Change-Id: I6fc4ef1fd10bda3ba78cba464414dd071a2f50ca
Tested: on Linux.

Bug: 29337887, 29336299
Change-Id: Iad8b3b2263f6cea7ee7e45994369194960df293b
Tested: on Linux.

Namespace work

Add env var for flatc schema compiler cmake module

Change-Id: I8f9ef1d14f86671ced929c7a159115b1d8510327
Tested: on Linux.

Change-Id: I737f6fd0bb1302ab7cfa6ab8b06108e221ebb63c
Tested: on Linux.

Share warning and two methods

Added helpers to access objects while creating the flatbuffer.

More bit fields patches

More descriptive name, show that it's really just a temporary object.

Close #3892

Instead we need NONE (0) and ANY (all orred values), if the user didn't
already defined them

We just need to pass it to DEFINE_BITMASK_OPERATORS macro

Define bit mask operators for scoped enums bitfields

MSVC doesn't allow alignment on function params.

Close #3887