Use literal "ZOWE" as env prefix for NextVerFeatures

[gejohnston]

What It Does

I originally thought that using ImperativeConfig.instance.envVariablePrefix was the appropriate way to get the prefix for the ZOWE_V3_ERR_FORMAT variable. However, many API system tests do NOT call imperative.init(). We would be required to create very many mocks in our system tests to make such tests run successfully. That situation brought to light the possibility that any external app which uses a NextVerFeatures function, but which does not first call imperative.init(), will fail with some form of error.

This PR replaces the need for imperative.init() by simply placing the literal string "ZOWE" within the NextVerFeatures module for use as the prefix for environment variables.

How to Test

There is no new functionality in this PR. As long as automated tests run successfully, then this change should be good to release.

Review Checklist
I certify that I have:

• tested my changes
• added/updated automated tests
• updated the changelog
• followed the contribution guidelines

Additional Comments

Testing of the zowe-cli v3-err-format branch cannot be completed until this imperative PR is merged and published.

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (f7f02ea) 89.73% compared to head (52faaef) 89.73%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #997   +/-   ##
=======================================
  Coverage   89.73%   89.73%           
=======================================
  Files         211      211           
  Lines       11471    11471           
  Branches     2554     2554           
=======================================
  Hits        10293    10293           
  Misses       1178     1178           

Impacted Files	Coverage Δ
packages/utilities/src/NextVerFeatures.ts	100.00% <100.00%> (ø)

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

100.0% Coverage
0.0% Duplication

[zFernand0]

This resolved an issue I'm encountering on some API unit tests for Zowe CLI 😋
Thanks for doing this! 🙏🏽

[gejohnston]

Those Zowe CLI tests were likely fixed in the CLI branch for v3-err-format which has not been merged yet. Glad that this imperative fix allows the current CLI branch to work.

[github-actions]

Release succeeded for the master branch. 🎉

The following packages have been published:

• npm: @zowe/imperative@5.15.1

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