RANGER-4918: Add support for Impala in docker

[kumaab]

What changes were proposed in this pull request?

• Add support for impala services in ranger docker environment, impala images come pre-built with ranger-plugin.
• Hive and Impala use the same service definition in this setup.
• Impala needs to connect to HMS, which is part of ranger-hive container, so in this setup impala requires hive container running.

How was this patch tested?

CI: impalad, impala-statestored and impala-catalogd containers are running successfully.

[jinnabaalu]

Github actions are failing for Java 8 Builds with

[ERROR] Failed to execute goal on project ranger-knox-plugin: Could not resolve dependencies for project org.apache.ranger:ranger-knox-plugin:jar:3.0.0-SNAPSHOT: The following artifacts could not be resolved: org.jetbrains.pty4j:pty4j:jar:0.11.4, org.jetbrains.pty4j:purejavacomm:jar:0.0.11.1: Could not find artifact org.jetbrains.pty4j:pty4j:jar:0.11.4 in apache.snapshots.https (https://repository.apache.org/content/repositories/snapshots) -> [Help 1]

[kumaab]

@jinnabaalu The build has been fixed in RANGER-4919.