v1.17.11043.0 - WPF NuGet Only

Launch elevated instances via shell:AppFolder (microsoft#14637)

This uses `shell:AppsFolder` to launch elevated instances of the app via
`ShellExecuteEx` and `runas` in elevate-shim.exe. The app to launch is
discovered via the `GetCurrentApplicationUserModelId` API.

e.g. `shell:AppsFolder\WindowsTerminalDev_8wekyb3d8bbwe!App`

This will fallback to launching `WindowsTerminal.exe` if it fails to
discover the app user model id to launch.

This also fixes a bug in elevate-shim where the first argument of
WinMain was lost (e.g. `new-tab`).

Curiously, `AppLogic::RunAsUwp()` is never called and
`AppLogic::IsUwp()` is always false when running debug builds locally
(e.g. WindowsTerminalDev). It's not clear if this is an artifact of
development packages or something else.

## Validation Steps Performed

Various manual debug/execution scenarios.

Verified the fallback path by running the unbundled app by extracting
the `CascadiaPackage_0.0.1.0_x64.msix` from the 'drop' build artifact.

Fixes microsoft#14501

(cherry picked from commit eab1c23)
Service-Card-Id: 87690177
Service-Version: 1.16