add sample HL7 data

git-svn-id: svn://svn.openvpms.org/openvpms/archetypes/branches/1.8-dev@6337 9e4fa352-aafb-0310-9071-df624684024b
Changes for OVPMS-1544 Access application context in reports

git-svn-id: svn://svn.openvpms.org/openvpms/archetypes/branches/1.8-dev@6344 9e4fa352-aafb-0310-9071-df624684024b
Applied changes for OVPMS-1539 "Link Patient Documents and letters to invoice items such that batch numbers can be reported", contributed by Ben Charlton

git-svn-id: svn://svn.openvpms.org/openvpms/archetypes/branches/1.8-dev@6345 9e4fa352-aafb-0310-9071-df624684024b