Audit Event for PIXm Query by the Consumer

Defines constraints on the AuditEvent (AuditMessage) Resource to record when a PIXm Query Transaction happens, as recorded by the Patient Identifier Cross-reference Consumer.

• Build off of the IHE BasicAudit Patient Query event
• add the ITI-83 as a subtype
• client is Patient Identifier Cross-reference Consumer
• server is Patient Identifier Cross-reference Manager
• entity slice for query parameters
• eitity slice for a source patient identifier
• yes both entities likely say the same thing, but one is specifically the patient identifier, and the other is in query parameter format
• source is the client