[ #55823 ] Fix certificate handling regression
Replace some problematic kDebug with qDebug

This is necessary for KF5, but it also caused
touble on some distributions
[ #57915 ] Introduction to profiles

This commit replaces the Servers and Peer to Peer categories in accounts
configuration dialog. Top levels are now profiles associated with a
subset of accounts. Profiles are static for now
Code clean up
[ #57915 ] Drag and Drop for accounts and profiles

This commit introduces Drag and Drop in accounts' configuration
dialog
It also fixes wrong indentation
[ #57915 ] Add dialog for profile edition/creation

Edition is working, name of profile is changed to what user insert
in name line edit.
[ #57915 ] Add visitor to profiles

Add KDE profile persister, to save profiles to vcards
[ #59932 ] Move KDEPixmapManipulation to its own file
[ #59932 ] Add persistent profiles loading

We now load profiles from a given directory, reading all VCards
contained into it and liking them with accounts.