added new entity
attempted to add mana bar, not quite working

Bar is drawn as a black rectangle for some reason
mana bar working

currently bound to exp, change this later
mana bar now works

Mana Bar is increased when a player picks up a mana mist item
added clearmana command

for bugtesting
Merge branch 'Mana-Bar'

Conflicts:
	java/com/tvoids/firstmod/blocks/BlockManaOre.java