Add Assigned Credentials

The api saves assigned credentials. The request is different for secret data vault and SAPM accounts.

The parameters for SDV Account body: { "assignedCredentialUserId":"user_id", "credentialSource":"SECRET_DATA_VAULT", "secretDataVaultId": secret data vault db_id }

for SAPM account body:

{ "assignedCredentialUserId": "user_id", "credentialSource": "SAPM", "sapmAccountId": sapm account db_id }