[Implemented] CloseDebugOutput()

[SparrowhawkMMU]

Hi Fred,

Would it be possible to have a HideDebugOutput() keyword added to do the reverse of ShowDebugOutput()

This would allow the debug window to be hidden and re-shown at will, useful for when doing testing in later stages of development when we don't need to see the log all the time

[SparrowhawkMMU]

Also, if the ShowDebugOutput() command could take optional parameters to allow positioning and sizing of the debug window, that would be very useful too.