ScriptForge (SF_Calc new XRectangle property

The
   XReetangle(rangename)
property returns a com.sun.star.awt.Rectangle
structure describing the coordinates (in pixels)
on the screen where the given range is
located.

This opens the door to effective interactivity
in calc sheets with the use of popup menus.

Example:
   r = calc.XRectangle("B2")
   menu = CreateScriptService("PopupMenu", , _
           X := r.X + r.Width/2, Y := r.Y + r.Height/2)
initializes a popup menu centered on the given
cell.

The property exists in Basic and Python.
The SF_Calc help page should be updated
according to the actual patch.

Change-Id: I2a97c5c7b5bf84d36a2aab5e4b822e30c9d53d8e
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/180140
Reviewed-by: Jean-Pierre Ledure <jp@ledure.be>
Tested-by: Jenkins

wizards/source/scriptforge/python/scriptforge.pyi

@@ -164,6 +164,7 @@ try:
     from com.sun.star.sheet import XSheetCellCursor
     from com.sun.star.sheet import XSpreadsheet
     from com.sun.star.table import XCellRange
+    from com.sun.star.awt import XRectangle
     from com.sun.star.table import XTableChart
     from com.sun.star.uno import XComponentContext
     from com.sun.star.uno import XInterface
@@ -194,6 +195,7 @@ except ImportError:
     XSheetCellCursor = NewType('XSheetCellCursor', UNO)
     XSpreadsheet = NewType('XSpreadsheet', UNO)
     XCellRange = NewType('XCellRange', UNO)
+    XRectangle = NewType('XRectangle', UNO)
     XTableChart = NewType('XTableChart', UNO)
     XComponentContext = NewType('XComponentContext', UNO)
     XInterface = NewType('XInterface', UNO)
@@ -5040,6 +5042,10 @@ class SFDocuments:
         def XCellRange(self, rangename: RANGE) -> XCellRange:
             """ A ``com.sun.star.Table.XCellRange`` UNO object. """
             ...
+        def XRectangle(self, rangename: RANGE) -> XRectangle:
+            """ A ``com.sun.star.awt.XRectangle`` UNO structure describing the area in pixels on the screen
+            where the range is located. """
+            ...
         def XSheetCellCursor(self, rangename: str) -> XSheetCellCursor:
             """ A ``com.sun.star.sheet.XSheetCellCursor`` UNO object. """
             ...