Rearranged some targets and added Spawner.
Added servertoken to commandline arguments for CallFlowControl.
Spawner is now a project on it's own.

Having a single dart file with a small script in is great, but
when you need other packages than what is in the SDK, then you
need to have a pubspec.yaml file, which will create a pubspec.lock
file and a package folder, and now the small script starts to
pollute the environment.