3 new frog variants

I believe that we should see 3 new frog variants to make the game more diverse.

Cave frog:  The cave frog would be based off of the poison dart frog in that it would be able to shoot a dart of poison, but could be tamed and would shoot poison at hostile mobs.

Tree Frog:  This light green frog would be slightly smaller, have orange feet, and would climb trees.  If you broke a log block with one on it, it would fall and shoot its tung out at you one time dealing 1 heart of damage.  These frogs spawn in the oak, jungle, and dark oak forests.

Bull Frog:  This frog is located in the Mesa and Badlands biomes.  It does not like to go in water unless its laying eggs, so they are much more rarer than the other frogs.   They would be brown and would be slightly larger than other frogs.