Improve the rendering of required capabilities using standard CapabilityStatement rendering

[jkiddo]

As discussed on https://chat.fhir.org/#narrow/channel/179223-ihe/topic/iti-90 the documentation could be improved on the required capabilites using a FHIR capabilitystatement such as the one on https://github.com/ehealthsuisse/ch-epr-fhir/blob/master/input/fsh/mcsd_capabilitystatements.fsh

[JohnMoehrke]

The latest formal publication of mCSD did use the new CapabilityStatement rendering. Please elaborate on specific improvements to this publication that you see as needed.

[jkiddo]

I would refer to the capability statement sections instead of making the listings on e.g. https://profiles.ihe.net/ITI/mCSD/ITI-90.html#23904122-organization-resource-message-semantics - for consistency and visual appeal.

[JohnMoehrke]

ah, so your recommendation is to not duplicate in the ITI-90 markdown that which is now nicely displayed in the CS. Good task.