Add: Add notification model. Belongs to Hotel Model
Fix: Hotel has many notifications
Add: Add check in and check out time for hotel
Add: Add facilities fields for hotel
Add: Add notification view at add new hotel page
Add: Add all required fields for hotel based on the latest hotel structure
WIP: Save hotel's facilities as an array in hotel model
Add: Add room setting model. One hotel has many room settings. (room settings == room type)
Add: Add RoomFacility and HotelFacility to populate their facilities
Add: Add minimum stay and cut off day fields for room settings