Add ed classification mart

[thutuva]

Describe your changes

Please include a summary of any changes.

• added ed_classification mart based on ed_classificaton repo
• created a staging layer
• renamed models to match style pattern
• added icd 10 to ccs seed
• updated YAML
• added ed_classification_enabled and claims_enabled vars

How has this been tested?

Please describe the tests you ran to verify your changes. Provide instructions or code to reproduce output.

• executed dbt build without error

Reviewer focus

Please summarize the specific items you’d like the reviewer(s) to look into.
n/a

Checklist before requesting a review

• I have updated the version number in dbt_project.yml file to reflect the release number of this PR
• I have updated the docs files (by running dbt docs generate/serve and copying the necessary files into the docs folder)
• I have commented my code as necessary
• I have added at least one Github label to this PR
• My code follows style guidelines
• (Optional) I have recorded a Loom to explain this PR

(Optional) Gif of how this PR makes you feel

Loom link

https://www.loom.com/share/Tuber-Project-PR-Update-448b099885164db4827cf52fc8d24b3c?sid=a15b4b50-3e88-4dec-b3e4-1e7cf17b6d3b