Add did:drop method

[tenman1739-alt]

----- DID METHOD REGISTRATION FORM: DELETE EVERYTHING ABOVE THIS LINE ------

DID Method Registration

As a DID method registrant, I have ensured that my DID method registration complies with the following statements:

• [x ] The DID Method specification defines the DID Method Syntax.
• [x ] The DID Method specification defines the Create, Read, Update, and Deactivate DID Method Operations.
• [x ] The DID Method specification contains a Security Considerations section.
• [x ] The DID Method specification contains a Privacy Considerations section.
• [x ] The JSON file I am submitting has passed all automated validation tests below.
• [x ] The JSON file contains a contactEmail address [OPTIONAL].
• [x ] The JSON file contains a verifiableDataRegistry entry [OPTIONAL].

[tenman1739-alt]

I do believe my system being, unique in the registry, should have the opportunity.