Add Booking Facility on Single-Room Page

[Collie147]

I've added a few buttons on the single room page that post back to a script in the EWS folder booking that particular room. Buttons are modular and only display if the room is free for that time. I've added an extend function if the room is currently busy, however it books the room after the current meeting rather than actually extending the meeting, I'll see if it can be updated to extend the meeting rather than book a new one at a later stage.