FHIR / HL7 support

[markwoon]

It would be nice if PharmCAT can support HL7 data.

• output an HL7-formatted report
• support HL7 order text as an input so data from it can be included in the output?

Looking for help on what this output should contain/look like!

[whaleyr]

Suggested by a user for research HL-7 Spec: Pharmacogenomic Reporting

[whaleyr]

More docs suggestions from a colleague: https://build.fhir.org/ig/HL7/genomics-reporting/

[markwoon]

This is a duplicate of #17.