Several configuration options (compile time)

[rgrr]

• sigrok interface on/off
• mix Target/Probe debug output into one CDC (three CDCs are actually too confusing)

[rgrr]

its halfway done. There are now several options inside CMakeLists.txt which allow switching on/off features

[rgrr]

this is implemented in branch https://github.com/rgrr/yapicoprobe/tree/feature/systemview-rndis