explr 0.5 changelog

ADDITIONS:
- added mana
- added plant wand
- added healing wand
- added leeching wand
- added basic staff
- added fog
- added bow and arrow
- added lowercase letters
- added changeable mouse sensitivity, render distance, and fog settings
- added magic crystals
- added gravel
- added swimming in water
- added slimes
- added support for multiple textures on blocks
- added a hitbox system
- added screen-shake when you get hurt
- added damage indicators
- added stone sword
- added stone war axe
- added iron sword
- added iron war axe
- added death

CHANGES:
- changed health texture
- changed bread texture
- added new items to dungeon loot
- replaced above-ground stone with gravel
- changed workbench texture

FIXES:
- fixed ceiling collisions
- huge performance fixes
- fixed a bug where moving the screen can cause you to teleport through the ground
- fixed a duplication bug with crafting
- made player collisions a lot better

REMOVED:
- removed saving and loading worlds for the time being
- removed day-night cycle
- removed sadness