Move Shell functions into util Due to a bug in mingw only one c file may include shlobj.h as there is an unguarded inline definition in there leading to multiple definition errors. Thus the get_program_data get_program_files utility functions.

<!DOCTYPE RCC><RCC version="1.0">
<qresource prefix="/certs">
    <file alias="intevation.de">certificates/intevation.de.der</file>
    <file alias="geotrust">certificates/geotrust.der</file>
</qresource>
</RCC>