Patch Update 1.1 - Wave Boss

New content:
- added Wave Boss (every 10 waves)
- added enemy HP and Speed scaling

Bug fixes:
- The tower drag n shoot is NOT a bug but an intended feature :)
- Fixed max towers being deleted on merge

Quality of Life:
- added an autowave button
- balanced the defender cost scaling
- Highscore now persists through browser refreshes

Known Bugs:
- Soundtrack on wave battle is not working