Register and view SME for a Data Entity

[nateiam]

As a Data Publisher I want to indicate the SME for a Data Entity so users know who to contact with questions

Acceptance Criteria

• Data Publisher can register SME by calling BDef SME POST endpoint in Herd
• SME contact information displays on Herd-UI

Technical notes

• Herd must be configured to point to an LDAP Directory
• LDAP directory must have user first name, last name, email, phone number