Find and run closest test case and test suite near point

[zhenwenc]

Is your feature request related to a problem? Please describe.

It would be great to support finding the closest test case and test suite near the cursor, so that we can use bloop to run a test conveniently while coding.

Describe the solution you'd like

As an Emacs user, I usually execute this kind of commands with compilation mode, therefore I would like metals to only return the closest test case / test suite, so that I can build and run a custom command (either with bloop or sbt).

Maybe related to #64

Search terms:

spec,test

[tgodzik]

Great idea! I think that should be doable via executeCommand - something like metals.run - we could find out if we are inside a class/object that can run or test and then run that.

Not 100% on the details, but maybe @marek1840 can chime in?