* add new NIFSGadgetTrait
* implement Mova's NIFSGadget
* refactor Nova NIFSGadget to fit into the new NIFSGadgetTrait
* abstract NIFSGadget related tests for all implementors of
NIFSGadgetTrait to avoid duplicated code in the tests between the
different Nova variants gadget tests
* frontends/noir update mimc usage since it has been migrated from
noir's std into it's own repo