Generating Bundles without conditional references

[jawalonoski]

Discussed in #1332

Add configuration setting to export FHIR with conditional references to resources shared across Bundles (e.g., Organization, Location, Practitioner) to be "regular references", e.g.,

"managingOrganization": [ {
        "reference": "Organization/05cc5056-7af4-3afb-9a5a-d7a1c23a2509",
        "display": "KINDRED AT HOME"
      } ]