* Headers can have duplicate filenames which results in intermediate file conflicts, generate an intermediate subdirectory using the header relative path from the module root
* Don't use PCH for headers (also fix the original unmodified module compile environment being overwitten due to not making a copy !!!)
* Set SUPPRESS_MONOLITHIC_HEADER_WARNINGS=0 for header compiles
* Remove the need to generate a separate file to include the header with -SingleFile
* Fix /TC not being passed to clang-cl
* Disable a few clang #pragma related warnings
#rnx
#jira UE-214521
#rb christopher.waters
[CL 33608666 by joe kirchoff in ue5-main branch]
* Added additional command line arguments handling in BoxExecutor when -Target="..." is used
* Fixed so max remote action count is sent to native side
[CL 26386137 by henrik karlsson in ue5-main branch]
* Added -BoxNoWrite command line option. When this is set, intermediate/output files are not written to disk (for now there are a few exceptions such as ispc h-files and pch-files)
* Binaries with bug fixes
Added -BoxPrintSummary command line option. By default summary is now not written out to log
#rb joe.kirchoff
[CL 25821777 by henrik karlsson in ue5-main branch]
* Use object type rather than var
* Remove double newlines
* Use pattern matching
#rnx
#preflight 647780095d23eca37d28a387
[CL 25706751 by joe kirchoff in ue5-main branch]
2) Moved common code from executors into an immediate action queue.
3) Added support in the immediate action queue to read/write artifacts
#rb joe.kirchoff
#preflight 6454f3c5ed7ffaa0f5b2fbfa
[CL 25355149 by tim smith in ue5-main branch]
