Heart rate - hartslag verified implemented

The heartrate DCM of HL7 v 0.74 is based on various Nictiz
implementations, has been balloted in HL7 international project 320 and
is updated according to the ballot reconciliation. The XMI also holds
Dutch text.
Various exports are trial versions for ADL, XMIL and FHIR. Comments
welcome.
version NFU 1.1. has no connection to earlier specifications and
implementations.