Added Jira spec file generation

Key changes:

• Added code to generate jira file based on ig information and spit out a warning if it's not up to date

Designer impacts:

• The build will fail if the IG id doesn't start with 'hl7' as the organization, doesn't have a family of 'fhir', 'cda', 'v2', 'v3' or 'other', and doesn't either omit realm or declare a realm of 'uv' or 'us'
  • i.e. the IG id needs to look something like this: hl7.fhir.us.foo
• A contact with system of 'url' is required. The value must start with 'http://hl7.org/Special/committees/' and must end with the code for the address of one of the HL7 work groups.
• The status of the package must match one of the statuses from this Confluence page
• A warning will be triggered if the generated Jira file differs from that in the JIRA-Spec-Artifacts git project. See https://confluence.hl7.org/display/HL7/Configuring+Specification+Feedback for details.

0.0.1

Initial release