fixed an issue discoverd by MaxFX

- changed elevated/ground transition node

- needed LSM - update
- little fixes here and there
- new thumb
- new Ui - position

- added US models (rename the road to get them)
- improved some meshes
- changed tunnel props

total overhaul !

- new models (reduced tris etc .)
- new textures
- prepared for US- version without needed additional RAM
- etc.