Added bus stations to bus line relation (M71: Cluj-Napoca, str. Posada -> Petreștii de Jos)

Added missing bus stations for the M71 line

Added a new bus route and some of the new bus stops that it serves

Relatively minor updates that reflect recent changes on the field (new construction sites, roads that got paved, etc.)

Updated a few locations (added new ones, removed some that no longer exist, added tags etc.)