Fixed Issues in Ranger

This section lists the issues that have been fixed since the previous version.

CDPD-12848: When you try to create multiple policies using the API having same non-existing group, the group creation fails due to multiple threads trying to create the same group at once.

Separate threads are now created for retry group creation and checks if the group is previously created and associate it with policy.

CDPD-10072: Ranger Ozone plugin unable to write to solr audits in SSL enabled cluster

This issue is now resolved. A separate folder libext is added under the Ozone library path and all the ranger plugin jars are added under this new folder.