port knetattach from kurl to qurl
Summary:
kurl is deprecated.
- s/kurl/qurl
- non-existent functions ported per deprecation recommendation
- fileEncoding replaced with url.queryItemValue("charset") which should be the fitting replacement from a quick look at the kurl code
unfortunately there are still more kdelibs4support requirements left it
seems :(
Test Plan:
- builds
- connects to smb
Subscribers: plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D16273