Fix Config API bugs that affect extenders converting V1 profiles

[t1m0thyj]

What It Does

Fixes #2284, #2311, #2312

• Refactored ProfileInfo.profileManagerWillLoad so that it works without requiring readFromConfigDisk to be called first.
• Fixed ProfileInfo.onlyV1ProfilesExist so that it works outside of Zowe CLI when ImperativeConfig.instance.config is undefined. This required changing it from a static method to an instance method.
• Fixed ConvertV1Profiles API detecting V1 profiles in process.env.ZOWE_CLI_HOME, but not creating V2 config there.

How to Test

1. Example of testing both an invalid and a good credential manager:

const { ProfileCredentials, ProfileInfo } = require("@zowe/imperative");
(async () => {
    const profInfoBad = new ProfileInfo("zowe", {
        credMgrOverride: ProfileCredentials.defaultCredMgrWithKeytar(() => { throw new Error("bad cred mgr"); }),
    });
    console.log(await profInfoBad.profileManagerWillLoad());
    const profInfoGood = new ProfileInfo("zowe", {
        credMgrOverride: ProfileCredentials.defaultCredMgrWithKeytar(() => require("@zowe/secrets-for-zowe-sdk").keyring),
    });
    console.log(await profInfoGood.profileManagerWillLoad());
})();

2. (a) Should print false if both V1 profiles and V2 config are present, (b) Should ignore presence of meta files:

const { ProfileInfo } = require("@zowe/imperative");
(async () => {
    const profInfo = new ProfileInfo("zowe");
    await profInfo.readProfilesFromDisk();
    console.log(profInfo.onlyV1ProfilesExist);
})();

3. Convert V1 profiles with a custom ZOWE_CLI_HOME dir:

export ZOWE_CLI_HOME=/tmp/.zowe
zowe config convert-profiles

Review Checklist
I certify that I have:

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

Additional Comments

[codecov]

Codecov Report

Attention: Patch coverage is 83.33333% with 6 lines in your changes missing coverage. Please review.

Project coverage is 91.27%. Comparing base (c493ad7) to head (fa66054).
Report is 15 commits behind head on master.

Files with missing lines	Patch %	Lines
...es/imperative/src/config/src/ProfileCredentials.ts	50.00%	4 Missing ⚠️
packages/imperative/src/config/src/ProfileInfo.ts	81.81%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2313      +/-   ##
==========================================
+ Coverage   91.18%   91.27%   +0.09%     
==========================================
  Files         636      636              
  Lines       18057    18066       +9     
  Branches     3781     3784       +3     
==========================================
+ Hits        16465    16490      +25     
+ Misses       1591     1575      -16     
  Partials        1        1              

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[traeok]

This looks great, thanks for the fixes Timothy! I have a small request about updating typedoc for clarity, other than that the changes LGTM

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
92.5% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[github-actions]

Release succeeded for the master branch. 🎉

The following packages have been published:

• npm: @zowe/[email protected]
• npm: @zowe/[email protected]
• npm: @zowe/[email protected]
• npm: @zowe/[email protected]
• npm: @zowe/[email protected]
• npm: @zowe/[email protected]
• npm: @zowe/[email protected]
• npm: @zowe/[email protected]
• npm: @zowe/[email protected]
• npm: @zowe/[email protected]
• npm: @zowe/[email protected]
• npm: @zowe/[email protected]
• npm: @zowe/[email protected]

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