Facilities backend main

Single facility table with restrictions according to the functional requirements #4 #5 #7 #15 #16 #18

backend/secfit/facilities/admin.py

+"""Module for registering facilities from facility app to admin page so that they appear
+"""
+from django.contrib import admin
+
+# Register your models here.
+from .models import Facility
+
+admin.site.register(Facility)