* First working hack of adding 64-bit. Don't judge :)
* Made vector_downward work on 64 bit types
* vector_downward uses size_t, added offset64 to reflection
* cleaned up adding offset64 in parser
* Add C++ testing skeleton for 64-bit
* working test for CreateVector64
* working >2 GiB buffers
* support for large strings
* simplified CreateString<> to just provide the offset type
* generalize CreateVector template
* update test_64.afb due to upstream format change
* Added Vector64 type, which is just an alias for vector ATM
* Switch to Offset64 for Vector64
* Update for reflection bfbs output change
* Starting to add support for vector64 type in C++
* made a generic CreateVector that can handle different offsets and vector types
* Support for 32-vector with 64-addressing
* Vector64 basic builder + tests working
* basic support for json vector64 support
* renamed fields in test_64bit.fbs to better reflect their use
* working C++ vector64 builder
* Apply --annotate-sparse-vector to 64-bit tests
* Enable Vector64 for --annotate-sparse-vectors
* Merged from upstream
* Add `near_string` field for testing 32-bit offsets alongside
* keep track of where the 32-bit and 64-bit regions are for flatbufferbuilder
* move template<> outside class body for GCC
* update run.sh to build and run tests
* basic assertion for adding 64-bit offset at the wrong time
* started to separate `FlatBufferBuilder` into two classes, 1 64-bit aware, the other not
* add test for nested flatbuffer vector64, fix bug in alignment of big vectors
* fixed CreateDirect method by iterating by Offset64 first
* internal refactoring of flatbufferbuilder
* block not supported languages in the parser from using 64-bit
* evolution tests for adding a vector64 field
* conformity tests for adding/removing offset64 attributes
* ensure test is for a big buffer
* add parser error tests for `offset64` and `vector64` attributes
* add missing static that GCC only complains about
* remove stdint-uintn.h header that gets automatically added
* move 64-bit CalculateOffset internal
* fixed return size of EndVector
* various fixes on windows
* add SizeT to vector_downward
* minimze range of size changes in vector and builder
* reworked how tracking if 64-offsets are added
* Add ReturnT to EndVector
* small cleanups
* remove need for second Array definition
* combine IndirectHelpers into one definition
* started support for vector of struct
* Support for 32/64-vectors of structs + Offset64
* small cleanups
* add verification for vector64
* add sized prefix for 64-bit buffers
* add fuzzer for 64-bit
* add example of adding many vectors using a wrapper table
* run the new -bfbs-gen-embed logic on the 64-bit tests
* remove run.sh and fix cmakelist issue
* fixed bazel rules
* fixed some PR comments
* add 64-bit tests to cmakelist
* Handle invalid root offset
* Handle vtable offset invalidation
* Added script generator. Add more cases through vtable ref table size
* review responses
* vtable offset validation
* Moved padding insertion to the end. Tests invalid field lenghts
* table offsets validated. Added type after field
* validate string length
* add todo
* invalid vector length
* invalid structs
* general cleanup
* reworded invalid offsets
* example for vector of structs
* invalid vector of tables
* invalid vector of strings
* invalid vector of scalars
* vector of unions
* validate union type value
* invalid vector union type values
