Version ignoring faulty acknowledgement responses from pjlink devices

New configuration property ignoringAcknowledgementResponses for devices which are not compliant concerning PJlink acknowledgements:

pjLinkDevice:pjLinkDevice:MyProjector [ ipAddress="[...]", ignoringAcknowledgementResponses=true ]

[pjlink] Remove null characters in responses

This testing version removes null characters at the end/beginning of responses. This could resolve the issues reported in openhab#6725.

Enhanced logging version of PJLink addon

This version has some enhanced logging that will help to determine the causes or some remaining issues with the PJLink OpenHAB binding.

Version which is case insensitive when parsing responses

Remove outdated license header duplicates (#3830)

* Remove outdated license header duplicates

Signed-off-by: Wouter Born <[email protected]>