Endpoint returning number of cases with SNVs and SVs

[northwestwitch]

This PR adds | fixes:

• Adds the cases endpoint, which returns the number of cases with SNVs and SVs.

Added this because it's required in scout, specifically here

How to prepare for test:

• [ ] remove any previous Docker image for this repo: docker image rm loqusdbapi_loqusdbapi
• [ ] run docker compose up

How to test:

• Send a get request to the server from another terminal: curl -X GET "http://127.0.0.1:9000/cases"

• run docker compose down

Expected outcome:

• The endpoint should return number of cases in database with SNVs and with SVs

Review:

• [ ] Code approved by
• [x] Tests executed by CR
• [ ] "Merge and deploy" approved by

This version is a:

• [ ] MAJOR - when you make incompatible API changes
• [x] MINOR - when you add functionality in a backwards compatible manner
• [ ] PATCH - when you make backwards compatible bug fixes or documentation/instructions

[northwestwitch]

Tested:

[northwestwitch]

Thanks @moonso!

[moonso]

Thanks to you @northwestwitch for making the PRs and not just ask me to do it!!!

[northwestwitch]

Thanks to you @northwestwitch for making the PRs and not just ask me to do it!!!

But if I ask you, you might use the evergreen answer : feel free to open a PR to fix it! 🤣