Adding Luacats annotations. (#276)

* initial luacats annotations in init.lua file

* fix test

* adding more annotations
- get_base_colors not depending on config anymore

* fix test

* adds emphasis option (#272)

* adds emphasis option

* add testing for emphasis option

---------

Co-authored-by: Alex Koch <[email protected]>

* changed hl colors (#274)

Co-authored-by: Ellison <[email protected]>

* adding more annotations
- get_base_colors not depending on config anymore

---------

Co-authored-by: Alex Koch <[email protected]>
Co-authored-by: Mezdelex <[email protected]>