Add a 'Stamp' widget.

Place one or multiple stamps on scanned pages in defined locations.

A stamp is understood here as
 - a transparent text in a transparent frame with no borders
 - an opaque text on an opaque background with no borders.

Stamp parameters:
 - text
 - font
 - foreground colour
 - background colour
 - angle of rotation
 - transparency.

Locations:
 - centre
 - cardinal directions
 - inter-cardinal directions.

Resources/StampWidget/DefsStampWidget.h

@@ -0,0 +1,30 @@
+// /*
+//  * File:   Common.h
+//  * Author: Saleem Edah-Tally - nmset@yandex.com
+//  * License : CeCILL-C
+//  * Copyright Saleem Edah-Tally - © 2025
+//  *
+//  * Created on 27 06 2025, 20:34
+//  */
+
+#ifndef COMMON_H
+#define COMMON_H
+
+#include <wx/wx.h>
+
+// ----------------------------------------------------------------------------
+enum {CENTRE = 0, NORTH, SOUTH, EAST, WEST,
+  NORTH_EAST, NORTH_WEST, SOUTH_EAST, SOUTH_WEST};
+
+struct StampDescriptor
+{
+  wxImage image;
+  wxString text;
+  wxFont font = wxNullFont;
+  wxColour foregroundColour = wxNullColour;
+  wxColour backgroundColour = wxNullColour;
+  int rotationAngle = 45;
+  int location = 0;
+  bool transparent = true;
+};
+#endif // COMMON_H