Version 1.1.2.308

* Improvements
- added a frame for active time blocks for flight contracts(UI)
- draw collisions between objects during constructing

* Bug fixes
- fixed a crash related to roads during editing airfields objects
- fixed a possibility to split embedded road for office 1940 and 1970
- fixed many cases related to embedded roads
- fixed a crash during runway moving
- fixed initial toggle state for building activity toggle