Finding and Changing Window Attributes

• pxl-win-find-get_window_attributes: get_window_attributes/[2,3]
• pxl-win-find-put_window_attributes: put_window_attributes/[2,3]
• pxl-win-find-rotate_window_properties: rotate_window_properties/[2,3]
• pxl-win-find-delete_window_properties: delete_window_properties/[1,2]
• pxl-win-find-map_subwindows: map_subwindows/1
• pxl-win-find-unmap_subwindows: unmap_subwindows/1