Dirt Slab

Added Slab Blocks

Grass, Podzol, and Mycelium block recipes
right-click w/ shovel: dirt slab/block to path slab/block
Sneak + right-click w/ shovel: vanilla full block or double slab block to single slab
Sneak + Right-click w/ shovel: single slab top to bottom and bottom to top toggle
Right-click w/ hoe: coarse dirt slab to dirt slab
Right-click w/ hoe: dirt/path slab to farmland slab
Right-click w/ hoe: farmland slab/block to dirt slab/block
Grass slabs are fertilizable with bonemeal
Grass and mycelium spreads and fertilizes across both blocks and slabs
Sheep will eat grass off of grass slabs
A growing giant pine will also turn adjacent dirt/grass slabs into podzol slabs
Top and double farmland slabs can grow crops and melons
Melons can grow onto all top and double grass type slab blocks
Dead bushes, sugarcane, bamboo, mushrooms, flowers, and saplings can be placed on the appropriate top and double slab versions of the vanilla base blocks
Snow on top of or adjacent to a grass or mycelium slab will make it snowy
Particles

Mixed slab | Last tested with V1.0.0.0

Grass slabs: Overlay isn't cutout (results in black dirt)
Path/farmland: Uses full block model (results in seeing through the world via the top slice)
A mixed slab containing a dirt-slab block doesn't use the correct sound when breaking the block
The resulting blocks are simple display only (No other dirt-slab features apply to the mixed slab containing a dirt-slab block)