Merge branch 'DAVA/framework_0_5_5'
[DF-3327] refactor project manager for FilePath usage
[DF-3327] fix "/" char in ProjectManager::OpenProject()
[DF-3327] fix review issues
[DF-3327] small refactoring
[DF-3327] refactoring according review
Merge branch 'origin/development'
[DF-3327] refactor logic in fileDialogs(propertyEditor, material editor)
Merge branch 'DAVA/DF-3327_remove_landscape_and_Skybox_dialogs'