* Add button to calculate all object qtos in qto n-panel
* Calculate all qtos button: now the schema is readed from the file
* Calculate all qtos button: now edit_qto runs only one time every object
* Add button to assign pset qto to selected objects
* Calculate all qtos button: small fixing and unable to execute if no selected objects
* Calculate all qtos button: first tool test
* Calculate all qtos button: use better built-in function to get ifc obj entity
Massimo Fabbro