FPSpreadsheet: Fix reader to detect underlined font in xlsx charts.
FPSpreadsheet: Fix font of xlsx axis labels.
FPSpreadsheet: Fix display of category axis labsls.
FPSpreadsheet: Fix duplicate legend items (after tabcontrol support)
FPSpreadsheet: Fix reading text:span elements in chart titles.
fpspreadsheet: Add WorkbookTabControl to chartlink demo to select the (first) chart of the current sheet.
LazMapViewer: Less hints and warnings
LazMapViewer: Add convenience methods for PointsOfInterest.