Implement IcingaException

refs #6931
AuthenticationException: extend IcingaException

refs #6931
ConfigurationError: extend IcingaException

refs #6931
MissingParameterException: extend IcingaException

refs #6931
NotImplementedError: extend IcingaException

refs #6931
NotReadableError: extend IcingaException

refs #6931
NotWritableError: extend IcingaException

refs #6931
ProgrammingError: extend IcingaException

refs #6931
SystemPermissionException: extend IcingaException

refs #6931
Merge branch 'master' into bugfix/exceptions-with-printf-params-6931
Merge branch 'bugfix/exceptions-with-printf-params-6931'

fixes #6931