* CMake option C3_ENABLE_CLANGD_LSP
The CMake option enables the generation of compile_commands.json in
the build directory and the creation of a symlink in the root
directory targeting the new file,
this will allow the Clangd Language Server Protocol (LSP) to
function properly.
* Added .editorconfig
EditorConfig helps maintain consistent coding styles:
https://editorconfig.org/
