Improve 'manage faction properties' fauthority

Suggestion:
Currently, members with this authority can only manage faction houses, which is kind of useless. It would be much better to also be able to manage faction vehicles, like unimpounding, reparking, respraying etc.

Quoted https://forum.sa-mp.im/viewtopic.php?t=201040

Who benefits:
Basically all factions, as it makes the authority more meaningful and improves efficiency in faction management.

Who is hurt:**
Nobody