More Village Trade Options - Balance Version

Starting with the biggest and most exciting change: Ancient Debris has had it's cost lowered significantly! No longer do you need to pay 120 Emeralds for each one, now they can be brought for only a full stack of 64 Emeralds!

In addition, due to later sales at higher level, Shepard's no longer sell wool at first level.

Beyond that, this update has done lots of invisible changes to higher level trades, to balance out and adjust the xp given for each trade. Trades at lower level, which is most of them, have not been changed, so you still know what to expect if you've downloaded a previous version of this mod.