Backport of Net 4414 remove anyuid openshift requirement into release/1.5.x

[hc-github-team-consul-core]

Backport

This PR is auto-generated from #4152 to be assessed for backporting due to the inclusion of the label backport/1.5.x.

The below text is copied from the body of the original PR.

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Changes proposed in this PR

This PR solves two problems:

• Adds the NET_BIND_SERVICE capability to the Consul Dataplane containers that are created. This work was done in another PR, but has been pulled into this one. Original PR
• Removes the need on Openshift for using an SCC that allows anyuid. We now use the annotation provided by Openshift on the namespace to set the user and group IDs for our containers. This work was originally done in another PR, but has been pulled into this one and expanded to cover API gateways and use separate user/group IDs for the init + dataplane containers that do not conflict with application user/group IDs. Original PR

How I've tested this PR

Manual testing
Unit tests

How I expect reviewers to test this PR

Follow this gist to setup and install Consul onto Openshift

Checklist

• Tests added
• CHANGELOG entry added

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Overview of commits

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