-The logic in NativeProjects.cs IsHybridContentOnlyProject which decides whether we need to build an executable for a project was always using the buildhost platform (usually win64) to decide which plugins were active. This caused it to miss enabled code plugins that build for the actual target platform but not the host platform and potentially not do an executible build when one is required.
-Now we pass the TargetPlatforms for the current build into ConditionalMakeTempTargetForHybridProject so that we can test against them. If any project in this list needs code built we will make a temp target.
#jira UE-189611 UE-192833
#rb Josh.Adams
[CL 27101769 by jeff fisher in ue5-main branch]
d5fbfa08db