Update derive endpoint for compatibility with current selective disclosure specifications

[Wind4Greg]

There are currently two VC specifications in process that support selective disclosure: Data Integrity ECDSA Cryptosuites v1.0 and BBS Cryptosuite v2023. Currently the derive endpoint supports the following properties: verifiableCredential, frame, and options.

Neither selective disclosure specification utilizes JSON-LD framing anymore hence the frame field should be deprecated. Instead both specifications use selectivePointers, an array of JSON pointers, to specify selectively disclosed claims.

Based on discussions on the 2024-01-30 VC-API call it was suggested that a selectivePointers attribute be added to the options property to accommodate selective disclosure via the current specifications.