[BZ 1070431] Provide initial CSP integration for opening JON cases

This PR adds support for CSP (or RH Access) integration to JON.  

New WAR subdeployment called rh-access-war is a standalone application that provides integration between JON and RHA. It conains anuglar app provided by RHA team and simple backend sevlet that get's called in case customer wants to attach JON JDR Report when opening support case.

Integration to coregui is done by HTMLPane (IFRAME). This Page is accessible from Help main menu (Product section) and also from main bar (next to message center icon)

One small piece is still missing - proxy configuration.

Please do not merge it yet, this feature will be disabled/hidden in RHQ, but it's now enabled for demo purpose.