v0.4.0

New version for Skilllwood has been released. 

•  Based on klim43 comment I prioritized access to the limestone area and added a possibility to build a bridge to there
  
  
  
  
• Custom preloading screen was added instead of deafult godot one 
  
  
  
• refactor: moved buildable feature into separate scene (it made bridge scene easier to create), grouped some scenes within folders and so on. I hope to present project code structure sooner or later