Add Communication Matrix Module

[sabinaaledort]

This commit adds a new module to generate a communication matrix.
The communication matrix lists the open ports in the cluster and
provides different formats to print the results.

Use the /pkg/network/commatrix/Makefile to generate the matrix.
The OUTPUT variable is the desired output format, which can be set to YAML, CSV,
or JSON.
The CLUSTER_ENV variable is the environment in which the cluster is deployed;
currently, it can be set to either baremetal or aws.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: sabinaaledort
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[openshift-ci]

@sabinaaledort: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/unit	824c8c1	link	true	/test unit

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[openshift-merge-robot]

PR needs rebase.

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