Generate Project Files process fails if SwarmAgent.exe is not present

This issue appears to be the result of the fix for [Link Removed] which removed RPCUtility from the Engine. A licensee noted that they were now seeing an issue when attempting to generate project files for the Engine because their Engine repo does not include SwarmAgent.exe. In this case, SwarmAgent is built from source by the build system, so it is not present in the repo which causes the Generate Project Files process to fail.

REGRESSION:
Yes. This behavior did not occur in 4.21 because the Generate Project Files process was still looking for RPCUtility.exe instead of SwarmAgent.exe.

1. Obtain a fresh sync of the Engine source code.
2. Run Setup.bat
3. Navigate to Engine\Binaries\DotNET
4. Delete all SwarmAgent.* files (this simulates not having these files included in the Engine repo since they are built from source locally by the build system).
5. Run GenerateProjectFiles.bat.

RESULT:
The generate project files process fails because SwarmAgent.exe is not present.

EXPECTED:
The generate project files process completes successfully.