Merge pull request #10412 from GregoryMorse:patch-2

Merge pull request #10412 from GregoryMorse:patch-2

Update to add window position and size retrieval to HighGUI (#10412)

* Update highgui.hpp

Add read only property retrieval for enhanced rendering capabilities and more sophisticated research tools

* Update window.cpp

* Update window_w32.cpp

* Update window_QT.cpp

* Update window_QT.h

* Update window_QT.h

* Update window_gtk.cpp

* Update precomp.hpp

* Update highgui_c.h

* Update highgui_c.h

* Update window_w32.cpp

* Update precomp.hpp

* Update window_QT.cpp

* Update window_QT.h

* Update window_gtk.cpp

* Update window_gtk.cpp

* Update window_w32.cpp

* Update window_QT.cpp

* Update window_carbon.cpp

* Update window_cocoa.mm

* Update precomp.hpp

* Update window_cocoa.mm

* Update window_w32.cpp

* Update window_gtk.cpp

* Update window_QT.cpp

* Update window_gtk.cpp

* Update window_QT.cpp

* Update window_cocoa.mm

* Update window_carbon.cpp

* Update window_w32.cpp

* Update window_cocoa.mm

* Update window_gtk.cpp

* Update window_cocoa.mm

* Update window_gtk.cpp

* Update window_cocoa.mm

* Update window_cocoa.mm

* Update window.cpp

* Update test_gui.cpp

* Update test_gui.cpp

* Update test_gui.cpp

* Update highgui_c.h

* Update highgui.hpp

* Update window.cpp

* Update highgui_c.h

* Update test_gui.cpp

* Update highgui.hpp

* Update window.cpp

* Update window.cpp

* Update window.cpp

* Update window.cpp

* Update window.cpp