create_object
Description:
Create a new PKCS#11 object.
This call may block for an indefinite period.
If the attrs Attributes is floating, it is consumed.
Parameters:
| this | The session to create the object on. | 
| attrs | The attributes to create the object with. | 
| cancellable | Optional cancellation object, or  | 
Returns:
| the newly created object or  |