Feature request: support entitlements and hardened runtime on non-xcode builds for mac

[eyalamirmusic]

Currently, building on mac with CLion shows this messages:

CMake Warning at SDKs/FRUT/cmake/Reprojucer.cmake:5312 (message):
  Reprojucer.cmake only supports entitlements when using the Xcode generator.
  You should call `cmake -G Xcode` if you want to use entitlements.

CMake Warning at SDKs/FRUT/cmake/Reprojucer.cmake:1107 (message):
  USE_HARDENED_RUNTIME is only supported when using the Xcode generator.  You
  should call `cmake -G Xcode`.

[McMartin]

For reference, you can "call cmake -G Xcode" in CLion:

[eyalamirmusic]

Yes, that worked and removed those warnings, but also isn't the natural way of using CLion (and has weird behavior when you build/debug/etc) so it would be great if this could work without using that.