Began Refactoring of Motion brick XMLs

* Added and applied Styles where possible
* Changed strings where necessary
* Did not make them 'beautiful' because they'll be redesigned soon
* Very few changes in .java files, mostly coding style
Edited more Motionbricks, separated styles
Removed obsolte tests
Removed obsolote string resources
Fixed GlideToBrickTest

After refactoring, test couldn't add the brick (it was invisible, a very
old bug). Solved by adapting it to the way we add bricks elsewhere.
Fixed GlideToBrickTest for Jenkins with a Hack(?)
Added _prototype_ prefix where needed etc

* _prototype_ prefix added where needed
* refactored a few more XMLs I had to touch
Added Styles for Motion Brick Container Layouts
Merge branch 'master' into MotionBrickLayoutRefactoring
Renamed styles
Merge branch 'MotionBrickLayoutRefactoring' of github.com:Catrobat/Catroid into MotionBrickLayoutRefactoring
Fixed BrickCategoryDialog layout, fixed testcase
Merge pull request #131 from Catrobat/MotionBrickLayoutRefactoring

Motion brick layout refactoring