Migrate Carbon Aware WebApi to consume CA library

[Kpopovs1]

Issue Number: #209

Summary

As a Carbon Aware Developer, I want to have the CA WebAPI consumer layer use the Carbon Aware Library so that changes can be made in a single place: the CA Library.

Changes

• Updated WebAPI to use handlers, models, and exception in the GSF.CarbonAware Library
• Updated Unit Testing

Checklist

• [x] Local Tests Passing?
• [x] CICD and Pipeline Tests Passing?
• [ ] Added any new Tests?
• [ ] Documentation Updates Made?
• [ ] Are there any API Changes? If yes, please describe below.
• [x] This is not a breaking change. If it is, please describe it below.

Are there API Changes?

If yes, what are the expected API Changes? Please link to an API-Comparison workflow with the API Diff. N/A

Is this a breaking change?

If yes, what workflow does this break? N/A

Anything else?

Other comments, collaborators, etc.

Please follow GitHub's suggested syntax to link Pull Requests to Issues via keywords

This PR Closes #209

[codecov-commenter]

Codecov Report

Merging #233 (14ef3e7) into release (14ef3e7) will not change coverage. The diff coverage is n/a.

:exclamation: Current head 14ef3e7 differs from pull request most recent head 1d31730. Consider uploading reports for the commit 1d31730 to get more accurate results

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  Misses         486      486           
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