Unia Heavy Harrow V2.0

Changelog 2.0.0.0:
– improved the 3D model
– improved the physics of the harrows and rollers
– fixed an issue where the harrows and rollers slightly sank into the ground after being detached
– added a support type configuration (wooden blocks or bricks)
– added a new color palette
– improved the painted metal texture
– added a new dirt and wear texture
– improved several materials
– improved the configuration names
– added a new store icon and mod icon