Fix R4 implementation of getting a patient list from a Group with one…

[rob-reynolds]

… patient

[mdnazmulkarim]

looks good to me But this can be joined together
else if (member.getEntity().fhirType().equals("Patient") || member.getEntity().fhirType().equals("Reference") ) { patientList.add(member.getEntity()); }

[rob-reynolds]

I want to double-check that first one is even correct. But I need this update to test tomorrow so I don't have time. I should add a comment.