Changes to Send SMS

added the new required request property message

added the new required request property to_number

the request's body type changed from no type to object

the response's body type changed from no type to object for status 201

added the new optional request property from_number

added the optional property from_number to the response with the 201 status

added the optional property id to the response with the 201 status

added the optional property message to the response with the 201 status

added the optional property status to the response with the 201 status

added the optional property to_number to the response with the 201 status

endpoint added