Update llvm13 to version 13.0.0 / rev 1 via SR 923001
    
    https://build.opensuse.org/request/show/923001
    by user aaronpuchert + RBrownSUSE
    - New version 13.0.0.
      * For details, see the release notes:
        - https://releases.llvm.org/13.0.0/docs/ReleaseNotes.html
        - https://releases.llvm.org/13.0.0/tools/clang/docs/ReleaseNotes.html
        - https://releases.llvm.org/13.0.0/tools/clang/tools/extra/docs/ReleaseNotes.html
        - https://releases.llvm.org/13.0.0/projects/libcxx/docs/ReleaseNotes.html
        - https://releases.llvm.org/13.0.0/tools/lld/docs/ReleaseNotes.html
      * New LLVM tools:
        - llvm-otool: Mach-O object file displaying tool.
        - llvm-sim: LLVM IR Similarity Visualizer.
        - llvm-tapi-diff: Diff tool for tbd files.
        - llvm-windres: Tool to manipulate Windows resources.
      * llvm-elfabi was removed.
      * New Clang tools:
        - clang-repl, an interactive interpreter for C/C++.
        - intercept-build, analyze-buil