Useless casts are removed.
Off-topic: corrected description of constructor of TCollection_HAsciiString class from TCollection_HExtendedString for the case when input string contains non-Ascii character.
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl":
- WOK-generated header files from inc and sources from drv are moved to src
- CDL files removed
- All packages are converted to nocdlpack