0.76 New enemy, QOL, bunch of fixes. health change.

0.76 New enemy, QOL, bunch of fixes. health change.
- Fixed some missing geometry in tutorial.
- Added Witch Zombie.
- Fixed some tutorial text issues.
- Raised the roof height at the parry part of tutorial.
- Changed some defaults on the save data system.
- Increased character gravity and made adjustments to phase boon to avoid situations where the character can launch off ledges and ramps.
- Fixed an issue where clients would be unable to purchase anything after a revive in a multiplayer match.
- Stopped players from being able to get out of bounds from the top of the stairs.
- Set starting health to 4.
- Added hint for swapping weapon.
- Fixed some geometry in first room.
- Added indicators for projectiles.
- You can now swap between purchased cantrips.