Added NoDDC option for PIE tests.
ColdDDC option no longer nukes the local DDC, instead a temporary path is used.
Reworked PIE / Cook tests to rely more on a common base class functionality.
#rb swarm
#tests ran BenchmarkBuild with different options
#ROBOMERGE-SOURCE: CL 12056559 via CL 12056560 via CL 12056561 via CL 12056562
#ROBOMERGE-BOT: (v656-11643781)
[CL 12056563 by andrew grant in Main branch]
#ROBOMERGE-SOURCE: CL 12000189 via CL 12000732 via CL 12002271 via CL 12005776
#ROBOMERGE-BOT: (v656-11643781)
[CL 12048174 by andrew grant in Main branch]
Added EditorStartup test
#ROBOMERGE-SOURCE: CL 11943314 via CL 11944263 via CL 11944396 via CL 11944577
#ROBOMERGE-BOT: (v656-11643781)
[CL 11947228 by andrew grant in Main branch]
See - https://docs.microsoft.com/en-us/dotnet/framework/configure-apps/file-schema/runtime/thread-useallcpugroups-element
Also added MaxParallelActions command-line flag to UBT that can be used to restrict the number of cores used for local (e.g. nonxge).
Added -cores=X+Y=Z option to benchmark script for profiling
#rb swarm
[at]ben.marsh
#jira nojira
#ROBOMERGE-SOURCE: CL 11845433 in //UE4/Release-4.25/... via CL 11845441
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v656-11643781)
[CL 11845479 by andrew grant in Main branch]
#jira #rb na
#ROBOMERGE-SOURCE: CL 11806356 in //UE4/Release-4.25/... via CL 11806357
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v656-11643781)
[CL 11806358 by andrew grant in Main branch]
#ROBOMERGE-SOURCE: CL 11576916 via CL 11576921 via CL 11576922 via CL 11576924
#ROBOMERGE-BOT: (v654-11333218)
[CL 11576925 by andrew grant in Main branch]
Also includes -noshaderddc option for emulating a cold DDC for shaders only.
#rb na
#ROBOMERGE-OWNER: andrew.grant
#ROBOMERGE-AUTHOR: andrew.grant
#ROBOMERGE-SOURCE: CL 11519411 via CL 11519529 via CL 11519553
#ROBOMERGE-BOT: (v654-11333218)
[CL 11524747 by andrew grant in Main branch]
