[Fixes #11089] Switch to a new installer approach using a path manipulation helper

[n1hility]

What this PR does / why we need it:

Improves the Windows installation experience and fixes a few issues:

Fixes #11089 - cleanup PATH on MSI uninstall
Additionally fixes scenarios where the path can be overwritten by setx
Also removes the console flash, since the helper is built as a silent gui
Helper executable can be rerun by user to repair PATHs broken by other tools
Utilizes executable location instead of passed parameters to remove delicate escaping requirements

How to verify it

1. Install podman msi
2. Check registry

reg query hkcu\environment /v path

HKEY_CURRENT_USER\environment
    path    REG_EXPAND_SZ   %USERPROFILE%\AppData\Local\Microsoft\WindowsApps;;C:\Program Files\RedHat\Podman

3. Uninstall
4. Recheck registry

reg query hkcu\environment /v path

HKEY_CURRENT_USER\environment
    path    REG_EXPAND_SZ   %USERPROFILE%\AppData\Local\Microsoft\WindowsApps;

Which issue(s) this PR fixes:

Fixes #11089

Special notes for your reviewer:

None

[rhatdan]

@ashley-cui @jwhonce @baude PTAL

[n1hility]

BTW I forgot to mention in case it comes up. The reason this was done as a separate executable as opposed to podman subcommand is to be able to compile it as a GUI application and get rid of the console that splashes and vanishes immediately after during installation. If we decide we do not want to leave the helper executable on the user FS, we can also embed it as a binary element in the installer (config change + switch to path param approach). Although I thought it would be handy to be able to run it outside of installation if needed (fix broken paths, add a path entry for other users, etc)

[TomSweeneyRedHat]

I've rerun the failed test, looks to be a flake

[rhatdan]

@vrothberg PTAL

[TomSweeneyRedHat]

LGTM
assuming happy tests

[vrothberg]

Sorry, I can't really review. I have no expertise in Windows at all, the code isn't executed in CI and there are barely any code comments.

But I am OK to merge as long as I don't have to main it :^)

[n1hility]

@vrothberg I added some comments and also a little prompt for standalone usage. Let me know if anything looks confusing and needs additional commenting

[vrothberg]

LGTM, thank you!

Could you rebase on top of the latest HEAD? The e2e had a flake that has been fixed in the meantime.

[rhatdan]

/approve
/lgtm
Thanks @n1hility

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