- Platform memory
- Added LogMemory to log all memory related things
- Separated PlatformMemory stats from Allocator stats, added MemoryAllocator group for allocator stats, added MemoryPlatform for platform memory specific stats, stats for these groups are updated once per frame in FEngineLoop::Tick, stats are duplicated, so they can be accessed if STATS is not enabled
- Removed outdated code, references to unsupported platforms like PS3 or Xbox360
- Updated MallocProfiler to support these changed, increased malloc profiler file version to 4
- From now FGenericPlatformMemory.GetStats contains FPlatformMemoryConstants so there is no need to call the second method
- Improved memory reporting for Windows platform, other platforms need to be updated separately
- Misc tweak and fixes
#codereview Robert.Manuszewski
[CL 2038526 by Jaroslaw Surowiec in Main branch]
