Issue: http://issues.qcadoo.org/browse/QCADOOMES-484
Brief
Change the name of the Contractor entity to Company.
Add all the fields one can find in the Company view in Admin panel to the Enity + number field
In general only the Number and Name fields are mandatory.
Create one enity instance that represents the Company that owns the qcadoo MES installation.
This entity is special:
- should not be deletable
- editable only from the admin panel