[MAT-2270] Filling out code system URI Map

[jkotanchik-SB]

Expanding map

• Covers code system listed at https://cts.nlm.nih.gov/fhir/.
• Matches related maps in bonnie.

Caching map

Submitter:

• [ ] This pull request describes why these changes were made.
• [ ] Internal ticket for this PR:
• [ ] Internal ticket links to this PR
• [ ] Code diff has been done and been reviewed
• [ ] Tests are included and test edge cases
• [ ] Tests have been run locally and pass

Reviewer 1:

Name:

• [ ] Code is maintainable and reusable, reuses existing code and infrastructure where appropriate, and accomplishes the task’s purpose
• [ ] The tests appropriately test the new code, including edge cases
• [ ] You have tried to break the code

Reviewer 2:

Name:

• [ ] Code is maintainable and reusable, reuses existing code and infrastructure where appropriate, and accomplishes the task’s purpose
• [ ] The tests appropriately test the new code, including edge cases
• [ ] You have tried to break the code