Small change to clinical classes in linkml-microschema-profile to enable validation plugin

[sierra-moxon]

I would change the CDE microschema to store this set of linkml:comments:

      - Classes instantiating this SHOULD NOT have identifier slots
      - Classes instantiating this SHOULD be used with inlined=true
      - Classes instantiating this MAY compose other microschemas via attributes

here:

linkml-microschema-profile/src/linkml_microschema_profile/schema/linkml_microschema_profile.yaml

Line 48 in e08c308

comments:

like this:

ValueMicroschemaDefinition:
  is_a: MicroschemaDefinition
  annotations:
    must_not_have_id_slot: true
    must_be_inlined: true
    # I don't know how to validate/enforce "Classes instantiating this MAY compose other microschemas via attributes" and write a validator plugin to capture those annotations via the "instantiates" keyword here:
Quantity:
  instantiates:
    - ValueMicroschemaDefinition

and then I could write a linkml validation plugin to capture those annotations via the "instantiates" keyword:

Quantity:
  instantiates:
    - ValueMicroschemaDefinition

see also: #21, linkml/linkml#3281