added comments for deprecated use of method.

[edeyoung]

Remove "method" attribute from the following:

• Assessment, Recommended
• Assessment, Order
• Diagnostic Study, Order
• Diagnostic Study, Recommended
• Laboratory Test, Order
• Laboratory Test, Recommended
• Procedure, Order
• Procedure Recommended
• Substance, Recommended
• Physical Exam, Order
• Physical Exam, Recommended

"Method" SHOULD remain on:

• Assessment, Performed
• Diagnostic Study, Performed
• Laboratory Test, Performed
• Physical Exam, Performed
• Procedure, Performed

Pull requests into Health Data Standards require the following. Submitter and reviewer should :white_check_mark: when done. For items that are not-applicable, note it's not-applicable ("N/A") and :white_check_mark:.

Submitter:

• [x] This pull request describes why these changes were made.
• [x] This PR is into the correct branch.
• [x] Internal ticket for this PR: https://jira.mitre.org/browse/BONNIE-1601
• [x] Internal ticket links back to this PR
• [x] Code diff has been done and been reviewed (it does not contain: additional white space, not applicable code changes, debug statements, etc.)
• [x] Tests are included and test edge cases. N/A no code changes
• [x] Tests have been run locally and pass
• [x] Code coverage has not gone down and all code touched or added is covered.
  • No code changes

Cypress Reviewer:

Name: Dave Czulada

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

Bonnie Reviewer:

Name: @hossenlopp

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