Add setWindowPos and getConsoleWindow

[ndmitchell]

These are the two functions required for ghcid, both of which are manually written out in https://github.com/ndmitchell/ghcid/blob/0d0a6aff30124bdb701191efd5170d3fadcb5cbe/src/Language/Haskell/Ghcid/Terminal.hs#L33-L39 and could be replaced with Win32 ideally.

[ndmitchell]

Also wM_GETICON.