v0.13.0 - Save mechanism

First version of saving mechanism is her, with a twist :) You can travel through time & space to previously marked point. Your arrival send energy blast through the station making everyone confused for some time.

F5 for quick save

F6 for quick load

Features:

• Save mechanism
• Units are confused after game loading

Bug Fixes:

• Prevent building truss on  already build one
• Handle situation when unit without job dies