UT updates for all packages in csireverseproxy

[bharathsreekanth]

Description

Updated unit tests across all packages in csireverseproxy. This is phase 1 of the changes, there are still some packages with low coverage, will tackle them in a separate PR.

GitHub Issues

List the GitHub issues impacted by this PR:

| GitHub Issue # |
(dell/csm#1614)

Checklist:

• Have you run format,vet & lint checks against your submission?
• Have you made sure that the code compiles?
• Did you run the unit & integration tests successfully?
• Have you maintained at least 90% code coverage?
• Have you commented your code, particularly in hard-to-understand areas
• Have you done corresponding changes to the documentation
• Did you run tests in a real Kubernetes cluster?
• Backward compatibility is not broken

How Has This Been Tested?

Unit test changes across all packages under csi-powermax/csireverseproxy, unit tests ran. Results attached.

PASS
coverage: 86.3% of statements
ok github.com/dell/csi-powermax/csireverseproxy/v2/pkg/utils 0.443s coverage: 86.3% of statements

reverseproxy-uts.txt