[DF-4295] Refactored LandscapeEditorSystems. Added flipping of heightmap
Merge branch 'development' into mirrorland
[DF-4295] Restored editing of heightmap
[DF-4295] Fixed heightmap editor
Merge branch 'development' into mirrorland
[DF-4295] Added base class for landscape editor systems
[DF-4571] Added YamlEmitter, change some code.
[DF-4571] Replace old save to yaml.
[DF-4571] remove legacy code. code improvement.
Merge branch 'development' into DF-4571_YamlEmitter

Conflicts:
	Sources/Internal/UI/UIButton.cpp
Merge branch 'development' into DF-4571_YamlEmitter

Conflicts:
	Sources/Internal/UI/UIButton.cpp
[DF-4571] Fix android and macos\ios files.
[DF-4295] Fixed win32 project
[DF-4571] code cleaning.
Merge branch 'development' into mirrorland
[DF-185] Fixed warnings
Merge branch 'development' into mirrorland
[DF-4571] Added comment.
[DF-4295] Fixed beasting of new landscape
[DF-4571] fix review issues.