Outdated Underground Chocolate Biome Techest fix

changelog:
- Now completely compatible with other biome mods! (yay)
- Removed Mocha plant. (confilct)
- Removed Mocha drink (confilct)
- Swapped the Liquid chocolate's slow effect with the Tarslow (I'm going to eventually replace it with something called 'sticky'.)
- Added milk to the biome. (or I tried to, I haven't seen it appear yet, so I might only be able to have one liquid per Biome)
- Hard Chocolate is slightly easier to break.
- Easter Bunny spawner now crafted with Chocolate Eggs.
- Edited quest text slightly to hint at where the biome can be found.

Upcoming changes:
- Addition of another biome specific crop.
- Biome specific microdungeons.
- Liquid chocolate re-texture, to give it a thicker look.
- Sticky effect added to liquid chocolate. Makes you move slowly along the ground, and slide down walls slowly when against them.
- (hopefully) A biome specific mob.
- Re-balancing all the consumables, and with any luck, adding a few more.

Please report any bugs if you find them! or even just things that seem a bit off, report anything really. Thanks, and enjoy!