[DF-2479] add new message descriptions
Merge branch 'DAVA/development'
[DF-2386] add messages in case of landscape absense
[DF-2641] - "Input" flag is disabled for UIStaticText.
Merge branch 'DAVA/development'

Conflicts:
	Tools/ResourceEditor/Classes/StringConstants.h
Merge branch 'DAVA/DF-2479_LandscapeEditor_messages'
Merge branch 'DAVA/DF_2386_messages_for_shadow_settings'