Standardise structure for recording governance meta-data in 1.4 archetypes

Will require additional implementation in existing tools to add new meta-data items.

Changes are to add the following to the other_details section of an ADL 1.4 archetype: other_details = < ["licence"] = <"xxxx"> ["original_namespace"] = <"org.openehr"> ["original_publisher"] = <"openEHR Foundation"> ["custodian_organisation"] = <"openEHR Foundation"> ["custodian_namespace"] = <"org.openehr"> ["build_uid"] = <"3076af96-e1dd-4f9b-abf2-23913fcf52b1"> ["revision"] = <"0.0.1-alpha"> ["references"] = <"ref 1 ref2"> >