update medication and immunization and add referralSummary
Adding a custodian ID to match the C32 document root ID for MITRE.
Add support for negation indicator and reason on other sections in addition to immunizations. Maintain immunization specific refusal_ind and refusal_reason but back with common negation_ind and negation_reason in entry.
Merge pull request #17 from hadleynet/develop

Add support for negation indicator and reason on other sections
initial commit of ccda templates
adding initial medication and immunization templates
Merge branch 'develop' of github.com:projectcypress/health-data-standards into develop
Merge branch 'develop' of https://github.com/rdingwell/health-data-standards into develop
Now checking the conditions in a C32 to see if a person is dead
Merge branch 'develop' of github.com:projectcypress/health-data-standards into develop
Adding CCDA template IDs for conditions, procedures, and medical equipment.
Merge branch 'develop' of https://github.com/projectcypress/health-data-standards into develop
Merge branch 'develop' of https://github.com/rdingwell/health-data-standards into develop
Adding ccda templates for allergies,results,social history,vital signs
Adding clinical_trial_participant to the patient record
Switching the storage of clinical trial participant from snake case to camel case so that it matches the rest of the models/patient API
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Merge branch 'develop' of https://github.com/projectcypress/health-data-standards into develop
Removing the status XPath expression because Encounters do not have a status in the HITSP C32
Removing commented code