Begin integrating STK500_v1 in the app #62

Note: Current implementation relies on symlink to stk500_v1 package,
this should be changed to a library later.
This is not ready for testing.

* Add Logger
* Remove placeholder protocol
* Add methods and fields to service
Merge branch 'iss62-protocol-integration' of https://github.com/Prosjekt2-09arduino/ArduinoStore into iss62-protocol-integration