FArchive now holds a "CookData" blob that contains relevant information for cooking. The TargetPlatform has been moved to this structure, and it has a reference to a CookContext that can hold data generated during the cook that doesn't get serialized to the uasset (in this case, the asset registry tags).
#rb Matt.Peters
#preflight 62151bc4797dbbeb472af77d
#preflight 621011f6ff52bfecfc032b15
#preflight 62152777141b500e17eb24ef
[CL 19076066 by Dan Thompson in ue5-main branch]
#rb Francis.Hurteau
[RN] Core, Minor
#ROBOMERGE-AUTHOR: matt.peters
#ROBOMERGE-SOURCE: CL 18279152 in //UE5/Release-5.0/... via CL 18279174
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v895-18170469)
[CL 18279186 by matt peters in ue5-release-engine-test branch]
* Modified EnableNewSave cvar to use multiple values: 0: disabled, 1: enabled for cook, 2: enabled for uncooked, 3: enabled everywhere
* Added proper Prestream Packages support to Save2 since it isn't something that will be deprecated in the end
* Fixed new package not being saved properly when passing in a Base Object because they aren't properly marked as fully loaded in Save1
* Added a way for SaveConcurrent to use serial save with Save1 for now when not being passed in the SAVE_Concurrent flag
* Switched Save2 traces to use the SaveTimeChannel like Save1
#rb Matt.Peters
[CL 14652312 by Francis Hurteau in ue5-main branch]
Add an additional check in the linker diff commandlet to check the old save algo against itself and catch potential save byproduct
Add a consistent vs algo linker diff mode for the cooker, consistent mode will detect save byproduct on the same save algorithm while algo mode will compare the two algorithm
#rb Devin.Doucette
[CL 14593292 by Francis Hurteau in ue5-main branch]
