Office Template

What's done already:
- [x] Cerber  can be pat
- [x] Cerber awakening waking up/killing player
- [x] Casset player can play/rewind/stop music
- [x] Change cassette
- [x] #43
- [x] #45
- [ ] Interactable Vents/Doors (depends on the final office layout/texture)