by the way, this is the first commit done inside Emacs :)

`C-x v =' now works!

before it didn't check if the file is into a got worktree.

they had the same output, only two slightly different implementation, and vc-got-root should be faster.

vc-got-create-repo is un-implemented: should we run got init?

All the ``BACKEND PROPERTIES'' and ``STATE-QUERYING FUNCTIONS'' functions are implemented. Why don't we start using them while developing the rest? :)