Add interFileDependencies Support for Inlay Hints + CodeLens

[mikadumont]

Open two .CS file in separate windows
Create a type in the one of the windows, create an instance of the type in the second window
For inlay hints
Modify a parameter of the constructor of the type
Note that the parameter hint in the second window does not get updated without a change in the file
For code lens
Note that the code lens does not get updated unless a focus occurs after creating an instance of the type.

This needs to be added to the LSP Spec, similar to what is done for pull diagnostics interFileDependencies