Added PC game model: Sierra/BigFun_ZugUmZug
Control: Lipmouse
Merge branch 'master' of https://github.com/asterics/AsTeRICS
Merge branch 'master' of https://github.com/asterics/AsTeRICS
Improved Lipmouse Casedesign:
-) no screw nuts
-) Logo engraved

WARNING: No production file, because of multiple parts with different dimensions