Changes to Get Access Token after MFA include Passcode

added the new required request property access_token

added the new required request property passcode

the request property client_id became required

the request property client_secret became required

the request property password became required

the request property username became required

added the new required request property mfa_type with a default value

added the new required request property mfa_vendor with a default value

added the new required request property ns_id_type with a default value

the grant_type request property default value changed from password to mfa