DYN-8728: Refactor package loading [WIP]

[aparajit-pratap]

Purpose

This is a WIP PR. I'm only publishing this so I can check for self serve regressions if any with these changes.

This is NOT ready for review.

Declarations

Check these if you believe they are true

• [ ] Is documented according to the standards
• [ ] The level of testing this PR includes is appropriate
• [ ] User facing strings, if any, are extracted into *.resx files
• [ ] Snapshot of UI changes, if any.
• [ ] Changes to the API follow Semantic Versioning and are documented in the API Changes document.
• [ ] This PR modifies some build requirements and the readme is updated
• [ ] This PR contains no files larger than 50 MB
• [ ] This PR introduces new feature code involve network connecting and is tested with no-network mode.

Release Notes

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FYIs

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