facilities: student accommodation

first draft
Revert "facilities: student accommodation"

This reverts commit d50f9733c0e0e686dafae4060cc68b0108e2ceb8.
facilities

first draft of facility pages (student, guest, amenities)
Navbar update

updated to included facilities pages
Added overview pages for hall life ->interest groups

overview pages added
indexes of pages to follow hl_interest_indexes.txt
navbar and footer updated accordingly
Merge remote-tracking branch 'origin/nicholas' into nicholas

Conflicts:
	assets/css/main.css
	facil_amenities.php
	facil_guest.php
	facil_student.php