* [llvm] install tools in tools/llvm
* remove the giant commented out block of code
* update port-version
* hopefully fix the port?
There are still some issues, namely that the python scripts and DLLs that are copied into `tools/llvm`
are not considered to be "installed by llvm", and thus are not removed when llvm is removed
* format!
* apparently REGEX REPLACE fails if a thing doesn't match
* fix LLVM_REMOVE_EXTENSION_REGEX on windows
* actually read the cmake regex docs...
* fix the name of the variable
* turns out CMAKE_MATCH_1 is the one I want
* need to update VERSION for new policy
* stop removing debug/bin
* fix faulty merge
