Add option for Clang compilation database.

[alloy]

This PR makes it possible to use a Clang compilation database instead of having to specify compiler options manually, which might also not cover the needs of each source file.

I have verified that it works by creating a DB during each Xcode build with this tool, but CMake and Ninja support the generation of these files too.

It seems like my VS Code settings stripped all trailing whitespace, let me know if that’s a problem for you.

[alloy]

I’ll also have you know that I’m very new to VS Code, so not sure if I’m overlooking anything.

[alloy]

Hmm, I’m getting this, but I’m unsure where exactly it’s coming from or how to determine that, I was not seeing this during development of the extension.

[vector-of-bool]

Oops. I made a pull request for the same thing without realizing that a similar PR was already open...