[test-suite] Robust warnings for Fortran Test Suite tests that require Ninja.

• Add CMake issue number to Fortran Test Suite warning.
• Add CMake issue number in CMake Fortran module.
• Add ninja_required helper function.
• Add ninja_required to SPEC2017 CPU ROMS floating point tests.

Reviewed By: Meinersbur

Differential Revision: https://reviews.llvm.org/D97250