Add command to run current test

[oxo42]

Uses treesitter (must have matlab parser installed) to find out what the current test the cursor is on. It then sends a runtests command to the matlab pane.

Run tests with cursor in function

Run tests for the whole class

Note that the cursor is not inside a function

[idossha]

This is pretty cool. However, what happens when users do not have treesitter or the matlab parser? Is there graceful handling of this?

Can it be modified to rely on some config that is shipped with the plugin to keep dependencies at bare minimum?

[oxo42]

Yeah, that's a fair point. I'll see if I can figure out a clean way of doing it without TS