Generalize document type Bundle for reuse

[rob-reynolds]

IS: $care-gaps currently uses the following setting to meet requirements for Composition.author in a Bundle.type = "document":

• HAPI_FHIR_CR_MEASURE_REPORT_CARE_GAPS_COMPOSITION_SECTION_AUTHOR

SHOULD BE: As this is a requirement for a Bundle of type "document", this setting should be generalized as a "document" setting so it can be reused by all operations that generate documents.

NOTE: the current setting name "COMPOSITION_SECTION_AUTHOR" is not accurate. The setting is for Composition.author (not Composition.section.author).

Definition of Done:

• There is a setting that configures the Composition.author for all Bundle.type = "document" resources, system-wide
• The setting is correctly named to indicate that it applies to Composition.author, not Composition.section.author