Placable (item versions) of the tracks

[AlexIIL]

• [x] Straight track items
• [x] Blocks require solid ground underneath
• Diagonal Tracks:
  • [x] Angle and position based placement
• Ascending Tracks:
  • [x] Angle and position based placement
  • [ ] Pre-place indicator
  • White is placeable
  • Red means something is in the way
  • Dark Blue means no ground to stand on
• Curved tracks:
  • [x] Angle and position based placement
  • [ ] Pre-place indicator
  • White is placeable
  • Red means something is in the way
  • Dark Blue means no ground to stand on