never use name or text metaslots

[turbomam]

For example, when serialized in YAML, a LinkML schema does not need to declare the name or text of its entities. In fact, it bloats the files and is a potential source of conflict (relative to the out-dented key that introduces the thing that bears some name or text)

For example, this:

enums:
  AeroStrucEnum:
    name: AeroStrucEnum
    description: permissible values, used by term aero_struc
    from_schema: https://w3id.org/mixs
    permissible_values:
      glider:
        text: glider
      plane:
        text: plane
  AnimalBodyCondEnum:
    name: AnimalBodyCondEnum
    description: permissible values, used by term animal_body_cond
    from_schema: https://w3id.org/mixs
    permissible_values:
      normal:
        text: normal
      over conditioned:
        text: over conditioned
      under conditioned:
        text: under conditioned

could be

enums:
  AeroStrucEnum:
    description: permissible values, used by term aero_struc
    from_schema: https://w3id.org/mixs
    permissible_values:
      glider:
      plane:
  AnimalBodyCondEnum:
    description: permissible values, used by term animal_body_cond
    from_schema: https://w3id.org/mixs
    permissible_values:
      normal:
      over conditioned:
      under conditioned: