STRAMBIO -- Add RRID to Instrument

[strambc]

Extension name (optional): CORE
Element name(s): Instrument

Justification for the addition (brief and compelling):
RRID allows the Persistent Identification of the instrument model.
It would be appropriate to capture it if available.

Full description of the proposed addition (enough detail to implement):
your input here

- New Extension/Domain/Category name(s) (optional): __

- New Element/Field name(s): RRID

• New Element/Field description: "This field captures the RRID identifying the model of this instrument if available"
• New Element/Field Tier: Tier 1