consider standardizing RRIDs with prefix

[allaway]

currently, the SRC has to look for a variety of patterns to identify RRIDs: https://github.com/Sage-Bionetworks/synapse-web-monorepo/blob/9e4da441b2ab066bd2180ac071877173fe9573e5/packages/synapse-react-client/src/components/GenericCard/Linkify.tsx#L47

We shoudl consider adding the prefix RRID: and an appropriate regex rule ^RRID:[a-zA-Z]+.+$ to both the SRC and the data model so that we can validate input RRIDs, and have a simpler rule on the SRC side for finding these RRIDs. This also will allow any synapse user to define any valid RRIDs as links (currently, they can only do ones that match the linkify code above).

What do you think @cconrad8 ?