Raise already opened graph window

[Pepo]

When accessing an already open Graph window, using either Graph tab / Larger graph button or toolbar icon's Graphs menu item, if the Graph window is underneath other windows or minimized, it will stay so. The user will notice something went wrong, have to take attention, look for the Graph window's icon and elevate/restore it.

Let's raise the graph window in such situation automatically.

[fred]

When accessing an already open Graph window, using either Graph tab / Larger graph button or toolbar icon's Graphs menu item, if the Graph window is underneath other windows or minimized, it will stay so. The user will notice something went wrong, have to take attention, look for the Graph window's icon and elevate/restore it.

Let's raise the graph window in such situation automatically.

Added to the list.