IHE DSUBm ResourceNotificationSubscriber

The DSUBm Resource Notification Subscriber Actor CapabilityStatement requirements expresses the requirements that SHALL be provided. - Using FHIR R4 - SHALL support both json and xml encoding - SHOULD use a security framework. Recommend [ATNA](https://profiles.ihe.net/ITI/TF/Volume1/ch-9.html), encouraged [IHE-IUA](https://profiles.ihe.net/ITI/IUA/index.html) or [SMART-app-launch](http://www.hl7.org/fhir/smart-app-launch/) - SHALL support the ITI-110 transaction and support the basic type of Subscription and related SubscriptionTopic - SHOULD implement the ITI-113 transaction; if implemented: - [Search Parameters that SHOULD be supported](ITI-113.html#23113412-message-semantics) - _id - status - url - filter-criteria - topic - SHOULD support the DSUBm $status operation - SHOULD support the DSUBm $events operation - SHOULD implement the ITI-114 transaction; if implemented: - [Search Parameters that SHALL be supported](ITI-114.html#23114412-message-semantics) - code - [Search Parameters that SHOULD be supported](ITI-114.html#23114412-message-semantics) - _id - resource - derived-or-self - status - url