[RH-SSO 7.2] [RH-SSO 7.3 TP CD] Consume standalone-openshift.xml from upstream standalone-ha.xml

The RH-SSO 7.2 for OpenShift and RH-SSO 7.3 CD Technology Preview for OpenShift images currently keep own, fixed-form copy of standalone-openshift.xml configuration file:

• RH-SSO 7.2 copy
• RH-SSO 7.3 copy

Since such fixed copy gets outdated very quickly, it leads to issues when outdated standalone-openshift.xml configuration file fails to launch with most recent Keycloak server overlay Zip archive.

Acceptance Criteria:
The change should introduce new sso.create.configuration module (the /72 and /73 variants of it, respectively), basically doing two things:

1. Retrieving latest version of standalone-ha.xml from upstream for specific RH-SSO product version,
2. Modifying such standalone-ha.xml into form expected by standalone-openshift.xml:
   1. This includes introduction of "XML anchors" like

      <!-- ##SSL## -->

      , or

      <!-- ##MGMT_IFACE_REALM## -->

      (see above links to existing copies to get the finite list of all these required anchors),

   2. And transformation of standalone-ha.xml to standalone-openshift.xml by adding parts, necessary on OpenShift platform (e.g. OpenShift log formatter etc.)