replace current output formatting of the forwarder module to template based solution

[toschneck]

To be able to customize the output of the different forwarder modules we should implement an template engine with the following preferences:

• flexible to customize the output also to different languages
• gathering a over-all status have to be possible (and customizable)
• template should be placed at the config dir and can be overridden in the sakuli.properties /testsuite.properties with a specific path
• Forwarder modules:
  • Gearman
  • Incinga
  • Common console output
  • maybe a "free" flexible File forwarder (default same as the console output), to be able to wirte customizable output files

[toschneck]

after #176 is merged to dev @joroboro can start with this :wink:

[joroboro]

gearman forwarder will be changed to twig templating in #310