add relationships for rooms<->facilities

allow edit facilities in PUT /.../rooms and PATCH /.../rooms

add facilities router

change get_filtered(), return rooms instead of null

create get_filtered_by_time() in RoomsRepository

add bookings

DBDep self context manager

create /hotels/{hotel_id}/rooms router; add get_filtered() function to BaseRepository

get user from token

create access token and set cookie

unique user

add POST /auth/register; hashed_password not ready yet

add users table

minimal Data Mapper configuration within Repository

add get one hotel

update and delete

add base repository, use HotelsRepository in GET /hotels

first_commit