Add silent installation parameters/switches to ModMiiInstaller.exe.

[DandelionSprout]

Mostly based on microsoft/winget-pkgs#350048 (comment).

In order for the setup file at ModMiiInstaller.exe to have at least a theorethical chance of being added to Winget, it would need to support silent installations through command line. Things like /silent, -s, --silent, --quiet, stuff like that.

Looking quickly into the installer and seeing it relies on InstallForge, apparently the InstallForge devs have consistently ignored questions for the past 11 years on how to add support for silent installs, so for all I currently know it would require changing the installer's backend(?) entirely.

[xflak]

Coincidentally, the next ModMii update will switch to a different installer that supports /VERYSILENT and /SILENT arguments to suppress the user interface or show a progress window without prompts.

The next update is still some time away though. When it drops perhaps we can revisit the winget request.

Thanks!