move rest-api routes to trails controller, closes #3791

app/controllers/resources/ajax.php

app/views/resources/print/clipboard_rooms.php

app/views/resources/print/individual_booking_plan.php

app/views/resources/resource/booking_plan.php

app/views/resources/room_planning/booking_plan.php

app/views/resources/room_planning/semester_plan.php

app/views/resources/room_request/planning.php

app/views/room_management/planning/index.php

app/views/room_management/planning/semester_plan.php

resources/assets/javascripts/lib/resources.js