Returning internal return code through function argument for 'httpClientSessionInit'

[Gautham-coder]

Proposed changes

Function 'httpClientSessionInit' calls other functions inside it and the return codes for those calls are not availabe outside 'httpClientSessionInit'. Adding a return code as argument will solve this requirement.

This PR addresses Issue: #468

This PR depends upon the following PRs:

Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Change in a documentation
• Refactor the code
• Chore, repository cleanup, updates the dependencies.
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

PR Checklist

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• If the changes in this PR are meant for the next release / mainline, this PR targets the "staging" branch.
• My code follows the style guidelines of this project (see: Contributing guideline)
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• New and existing unit tests pass locally with my changes
• video or image is included if visual changes are made
• Relevant update to CHANGELOG.md
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works, or describe a test method below

[JoeNemo]

We need to version the API

[Gautham-coder]

Sure Joe. Thanks

[JoeNemo]

Approved.