Component #4 : Issuer CUSIP based linking
Objective: Create a component that links two Issuer records on the basis of Issuer Cusip
Success Criteria: Unique match is identified.
Error Condition:
Multiple Matches - If there are more than one record that share the same Issuer Cusip.
Issuer Cusip missing - If one or both the vendor feeds do not have Issuer Cusip (True for non-US Instruments)
Action on Error Condition: Call the Component to link using AI/ML technique.