Simplify build

* Removed dependency on visionsystem/configparser

This is done by remove VisionServerBG, the proper way to integrate with vs_core
is to use bci-interface in a vs_core plugin, see
https://github.com/gergondet/bci-vscore for a simple example

* Removed potential dependendcy on coshell-client

This was too specific to JRL and most of these CommandInterpreter
implementation were obsolete and unused

* Removed applications that used coshell interpreters

Only whack-a-mole is left in the main build