Adds deposited manure to fields when using manure spreaders. Instead of flat ground textures, manure actually lies on the soil.

Features:
- Manure is deposited directly on the field during spreading.
- Higher application rates of manure result in more manure on the ground.
- Deposited manure cannot be collected back from the field.
- Option in Game Settings to hide the standard flat manure texture.

The appearance and shape of deposited manure may vary slightly depending on the map's terrain configuration.

For more info, bug reports, or to contribute, check out GitHub (modnext/manureGround).