Change the JIRA issue creator plugin to be officially supported

The current ZAP JIRA plugin is an unofficial ZAP extension which allows you to create JIRA issues. It is an add-on NOT bundled with ZAP, nor available in the marketplace. DOWNLOAD AT YOUR OWN RISK AND DISCRETION.

Either update the current version of the plugin, a fork can be found here or incorporate the functionality into the ZAP exportreport plugin.