[DEV] Shattered Trinkets: Mossy Clump

Here's another trinket coming in Shattered Pixel Dungeon's next update!

The mossy clump interacts with level generation, making level types that are filled with vegetation or water much more common. At max level you can expect to see these two level types about 4x as often each. This provides lots more opportunities for players to use grassy or watery terrain to their advantage, or even just more seeds and dew to harvest.