Resolved some dependencies, removed dead code.
tinyxml separated
AIS stuff separated into its own directory.
AISTargetAlertDialog and OCPN_AlertDialog separated.
Some files moved to directory 'chart'.
Classes ChartGEO and ChartKAP separated.
ChartStack separated
chartdb and chartdbs renamed to reflect the class names.
Minor cleanup of ThumbWin
PianoWin separated
Renaming statwin to StatWin to reflect class name.