Initializes PartiQLData and PartiQLValueLoader

Relevant Issues

None

Description

Initializes PartiQLData and PartiQLValueLoader.
I modeled this with JDBC's ResultSet and Ion's IonReader in mind.
I also updated PartiQLResult.Value to hold PartiQLData -- NOT a PartiQLValue.
Note: I decided to write this in Java.

Reviewer Notice

The second commit removes all CLI tests as the KOW branch's CLI has been completely overhauled causing this PR to fail the build. For the reviewer, I'd recommend reviewing the first commit by itself and then checking to see that I didn't accidentally delete any other files in the second commit.

Other Information

Updated Unreleased Section in CHANGELOG: NO
Any backward-incompatible changes? NO
Any new external dependencies? NO
Do your changes comply with the Contributing Guidelines and Code Style Guidelines? YES

License Information

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

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Additional details and impacted files

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partiql / partiql-lang-kotlin