Ensure the namespaces filtering is respected in packages.config package installation/updates IVs installer API

[erdembayar]

In PR, restore and package installation are equivalent.
In PC they are not.

This task covers ensuring that the namespaces are respected during package installation.

Detailed explanation:

• In Add namespaces filtering support for packages.config restore in Visual Studio #10823, support for namespaces filtering was added in restore.
• This issue ensures that commands run through:
  • Any IVs installer APIs.

Below is clarification from @zivkan

Our NuGet extensibility in Visual Studio docs detail our IVs* APIs. Also see the interface definitions, particularly IVsPackageInstaller.cs (and IVsPackageInstaller2).

Roslyn use it when you have two projects in the solution, one of them use a package, and the other does not. When you write code in the project that does not use the package, Roslyn will give you a lightbulb fix to install the package into the project.

Another way to test it is via our API testing extension

[nkolev92]

@erdembayar we don't really use half days in estimates.

Can you please not adjust the estimates? It messes with the tracking in https://github.com/NuGet/Client.Engineering/issues/1026.