RANGER-3746: Introduce ubi9-minimal as the ranger base image with build & space optimizations

[kumaab]

What changes were proposed in this pull request?

Introduces UBI 9 minimal - an OCI compliant container base image as the ranger base image.

Key highlights:

• At least 2X faster image build time than the current base image.
• Significant memory savings on image size.

How was this patch tested?

• JDK 8:
  • Containers for ranger, ranger-kms, ranger-tagsync, ranger-usersync, ranger-hadoop, ranger-hive, ranger-hbase, ranger-knox, ranger-kafka come up fine.
  • ranger container comes up fine, tested service creation, policy creation, users/groups creation, installation logs.
• JDK 11:
  • Tested containers for ranger, ranger-kms, ranger-tagsync, ranger-usersync, ranger-hadoop, ranger-hbase, ranger-kafka.
  • Issues with ranger-knox, ranger-hive quits after running for several mins.
• Tested image builds on ubuntu for backward compatibility.