* [vcpkg] Rewriting CmdLineBuilder (2/n)
I would like, and I think the team would like generally,
to switch to using stuff like `posix_spawn`, as opposed to the
existing use of `system` and `popen`.
This requires a pretty large change to how we use CmdLineBuilder.
The first change we have to make is that the execute functions
_cannot_ take a StringView anymore.
This PR makes that change.
* [vcpkg docs] Change how documenting port functions works
Instead of using `##`, use comment blocks for documentation.
Also, add some minor docs and change RST -> MD
so we actually get docs generated.
* add CI stuff
* regenerate docs
* fix vcpkg_find_acquire_program to not use _execute_process
* [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
