Fix tls version

Removed static libraries and added Maven entries
Added OkHttp library as source code and forced TLSv1.2
Added OkHttp enforcing to doHttps-Methods (consistency)
Fixed resource reporting for Bricks

Test run: https://jenkins.catrob.at/view/All-Categories/view/Experimental/job/Catroid-Multi-Job-Custom-Branch-RELOADED/477/