Fast and easy way to run locally the testsuite

Hi,

I will be super useful to get (as a normal user able to run qemu/kvm) the whole test suite locally using a git hook to commit.

something like

# apt install salsaci-local
(install all deps)
$ salsaci update-local
.... download and get in sync salsaci (may be package it)
somegit$ salsaci config --add-hook
somegit$ git commit .
... will run the salsa ci