Lot's pf work, need to finish the Counterpart handlers and commands

app/controller/admin.php

app/view/backend/base.html

app/view/backend/contrepartie.html

app/view/backend/contreparties.html

app/view/backend/dons.html

app/view/backend/user.html

src/LQDN/Command/CounterpartCreateCommand.php

src/LQDN/Container.php

src/LQDN/Finder/AddressFinder.php

src/LQDN/Finder/DonationFinder.php

src/LQDN/Handler/CounterpartHandler.php

tests/functional/Finder/AddressFinderTest.php