[OpenMP][libomp] Remove Perl in favor of Python (#95307)

* Removes all Perl scripts and modules
* Adds Python3 scripts which mimic the behavior of the Perl scripts
* Removes Perl from CMake; Adds

[OpenMP][libomp] Remove Perl in favor of Python (#95307)

* Removes all Perl scripts and modules
* Adds Python3 scripts which mimic the behavior of the Perl scripts
* Removes Perl from CMake; Adds Python3 requirement to CMake
* The check-instruction-set.pl script is Knights Corner specific. The
script is removed and not replicated with a corresponding Python3
script.

Relevant Discourse:

https://discourse.llvm.org/t/error-compiling-clang-with-offloading-support/79223/4

Fixes: https://github.com/llvm/llvm-project/issues/62289

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