CL 2704794 2704931 2704948 2704962 2705238 2706353 2700643 2705458
Uniform Buffer layout name
and
more debug info for this and other bugs: OR-7159 CRASH: Client crashed at start of match in D3D11Commands.cpp
Adding OptionalData (key value pairs) to the shaders (to put shader name into the shader code for better debugging), affects all RHI, invalidate DDC key for all shaders, cleanup existing code (was adding 0/1/5 bytes and had to compensate in many areas)
OptionalData:
key is a char, value is up to 255 bytes, up to 64K in total
#platformnotify Josh.Adams
[CL 2706923 by Martin Mittring in Main branch]
