Structure prepared for daemonize the plugin
 - Server implemented
 - Some Client parts
Simple Handling of clients
Added config options for daemon mode
Get graph names + cleanup client handling code
Bugfix empty daemon config
tests
First Tests for Deamon Mode
More Tests for deamon
Merge branch 'master' into deamon
Fixed Sonar violations
Bugfix Client Tests
Additional Logging
Merge branch 'daemon'