[Feature Request] Add a new FmiPath string property to AcquireTokenOptions

[jmprieur]

Is your feature request related to a problem? Please describe.
MSAL now exposes .WithFmiPath(string) on AcquireTokenForClientBuilder. We need to also expose it in the higher level APIs to support Federation Managed Identity.

Describe the solution you'd like
Add a new string property FmiPath to the AcquireTokenOptions class, as well as the usual XML comments, updates of methods (including the copy constructors when they exist, and unit tests with the included comments for the reference documentation

Describe alternatives you've considered
This will be exposed to 3P so we don't want to use AdditionalParameters here