Stone Walls v1.0.2.0

These are a 20 "paintable" walls for the build mode.

Changelog:
1.0.2.0
- Added 10 new walls
- Revised UV-Map (texturing)
1.0.1.0
- Added two new walls

The elements are fround in the building mode in the category Decoration under Fences.

Wall 5m:
- Price: 100$ / metre
- Slots: 1-2