Led brick

https://jenkins.catrob.at/job/Catroid-Multi-Job-Custom-Branch/1247/

Lint Warnings:
the function call in catroid/src/org/catrobat/catroid/utils/LedUtil.java:137  (...) new SurfaceTexture(0)
will be called only for API level >11. 

PMD Warnings:
IP address will remain hard coded