libpacman: Add find_if_not to flib & FList.
libpacman: Add a small flib::set utility class (sublcass of FList because of bindings).
libpacman: Drop FList::add_sorted and use flib::set::add where appropriate.
libpacman: Use m_handle a little bit more.
libpacman: Implement a faster find in flib::set.
libpacman: Move FStringList implementation to header (in prevision of future change.
libpacman: Move logger utilities from C to C++.
dg rec: Move ffilelogger.c and fsyslogger.c to C++.
libpacman: Make logging facilities more C++ with classes.
libpacman: Rename FLogger to FAbstractLogger.
libpacman: Make FAbstractLogger really abstract.