added video augmentation
Merge branch 'Export'
Merge branch 'Export'
implemented interface for element initialization. each element decides in mdel what properties are set on add.
removed duplicate and used adjusted Clone instead.
changed standard path for videoAugmentation to myvideos
adjusted scene duplication that it used element initialization and proper cloning
Merge branch 'master'
Merge branch 'master'
implemented preview for videoAugmentation
delete temp Thumbnail after creation
cleanup ThumbCreator
Merge branch 'master'