Adding resource file doesn't alert that ResourceManager is required

[TerryFogg]

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nanoFramework area: (Visual Studio extension )

Is your feature request related to a problem? Please describe.

Note sure if this is possible. If you add a new item (nanoFramework resource) then you also need the ResourceManager nuget package. Can this be alerted after a Resource File is added when the ResourceManager nuget is not present in the project

Describe the solution you'd like

An alert of even better install latest nuget for ResourceManager

Describe alternatives you've considered

Document ?

Additional context

Submit a PR with the implementation

[josesimoes]

From the project system side it's hard to handle. But this is something that an analyser could easily pick up and suggest the fix. One more to add to the list.