Add support for per monitor high DPI support introduced in Win10

[clin1234]

No description provided.

[DRSDavidSoft]

Thanks for the PR.

I believe I originally didn't added per monitor setup because we also need to handle DPI changes in the C++ code, it's not just a case for the manifest.

However, since we're not doing any GUI work in our launcher (it is just purely used to launch the actual terminal emulator, which is ConEmu is this case), and we're only using Windows' own dialogs, then I assume this change would be safe.

I need to investigate before merging to see wether the Dialogs and TaskDialogs that our code generates would truly support multiple monitor DPI scaling, by resizing automatically according to the monitor's DPI, and not preserving the DPI of the initial monitor (and thus keeping the size and not scaling correctly).

Thanks for the contribution! 👍🏻