libpacman: Fix flib::find.
libpacman: Remove a now dummy goto in _pacman_trans_sysupgrade.
libpacman: Remove unused fcomparator.h.
libpacman: Add basic C string like class.
libpacman: Add small flib::str_set class wrapper.
libpacman: Use flib::str_set to hold trans::skiplist.
libpacman: Move package graph code to its own class.
libpacman: Simplify _pacman_localdb_write* internal API by using specialisation.
libpacman: Add Flist (all|any)_match(_if) helpers.
libpacman Use flib::str_set to store package files.
libpacman: Rename flib::refcounted_ptr to refcounted_shared_ptr.
libpacman: Rename flib::refcounted::aboutToDestroy to about_to_destroy.
libpacman: Make refcounted_ptr a base class of refcounted_shared_ptr.
libpacman: Reorder flib::refcounted_ptr operators.
libpacman: Make a more proper interaction with refcounted_ptr in refcounted_shared_ptr.
libpacman: Add flib::refcounted_weak_ptr.