Level1-height map and painting
trees 2
trees 3 and swamp triggers
- placed swamp gas particles
- placed some trees
- added all light importance volumes
- modified swamp killing volumes
- added swamp post-process
Merge branch 'master' of https://github.com/FilipWrobel/EmptyPotUE4

Conflicts:
	EmptyPotUE4/Content/Maps/Level-1.umap