[FEAT] Enable compile_commands.json generation through cmake

[ManuaL46]

Wanted feature:

Hi this is a very simple request, can we enable the feature to generate compile_commands.json for clangd in cmake. We simply would have to add set(CMAKE_EXPORT_COMPILE_COMMANDS ON) to the cmake file.

Motivation:

Would make working on the code much easier right after cloning the repo and the change itself is pretty simple.