Update of the urtware submodule
Threads are also terminated when application is ready.
Enabled pubsub system
Argument from node functions is now printed
Fixed some small errors, extended hello world application so that argument is printed (not finished)
Added prints to find out where segfault is triggered
Merge branch 'master' into urtware_dev
Minor update of AMiRo-OS submodule
Wrote hello world functions for all three node functions (loop, shutdown, setup) for testing.
Code for testing the urtware:nodes are now initialized
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