Add optional value to ISession for passed proxy values

[JillieBeanSim]

What It Does
introduces an optional object in ISession for external proxy values to be sent by an extender like Zowe Explorer that would override the environment variable if set.

part one of ZE issue zowe/zowe-explorer-vscode#3010

How to Test

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

All modified and coverable lines are covered by tests ✅

Project coverage is 91.14%. Comparing base (c0f2fc0) to head (9d1d3ed).
Report is 16 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2330      +/-   ##
==========================================
+ Coverage   91.12%   91.14%   +0.01%     
==========================================
  Files         636      636              
  Lines       18011    18017       +6     
  Branches     3759     3873     +114     
==========================================
+ Hits        16413    16421       +8     
+ Misses       1597     1595       -2     
  Partials        1        1              

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[gejohnston]

I have no objections to this PR. In a response comment within this PR, could you explain the customer scenarios that this change will improve - just to better my understanding of how this change helps end users.

[JillieBeanSim]

Hey @gejohnston thanks, this addition will help extenders of the cli in VS Code and/or possibly other environments. An extender that is also a VS Code extension, ie. Zowe Explorer, may want to use the VS Code proxy settings instead of setting environment variables that are usually recognized by command line interfaces. if VSC proxy support is turned on, Zowe Explorer and it's extenders could allow users to set these values in the GUI interface and have them recognized with their rest calls.

[traeok]

LGTM, thanks Billie for adding proxy support!

[sonarcloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
91.2% Coverage on New Code
1.6% Duplication on New Code

See analysis details on SonarCloud

[zFernand0]

LGTM! 😋

[zFernand0]

This should be on public NPM after this workflow is done:

• https://github.com/zowe/zowe-cli-standalone-package/actions/runs/11687950797