Improve patient name field capture

[Brian Cragun]

Describe the bug
Add capability to find and convert the following patient information

• Patient.name.use / PID-5.7
• Patient.name.given / PID-5.3 (middle name)

NOTE: moved from #94

To Reproduce
Create a sample HL7V2.6 patient PID segment with aforementioned patient information.

Expected behavior
Patient information should be detected and added to corresponding fields in HL7 FHIR resources.

Screenshots
N/A

[Lisa Wellman]

In Release 1.0.9