Improved architecture handling for Microsoft.Rest type source(s)

[denelon]

Description of the new feature / enhancement

Some packages offer a different "latest" version of an application based on the architecture supported.

When the WinGet client is communicating with a REST endpoint the communications should be optimized to deal with different versions for different architectures.

The default flow should provide a better customer experience for both the "install" and "upgrade" scenarios.

When a specific architecture is specified using arguments, the response should honor the architecture specified.

When the "download" flow is being used, there should be an affordance to download the latest versions for "all" architectures.
There may also be caveats when a specific version is requested as opposed to just the "latest" version.

Related to:

• Improved architecture handling winget-cli-restsource#276

Proposed technical implementation details

No response