Grpc.AspNetCore.Server.Reflection doesn't work with shared proto file.

Dear
I've shared assembly containing a proto file.
The project look like this :
```





```

The server project :
```

```

When I use gRPCUI I get the following error :
Failed to compute set of methods to expose: Symbol not found: test
caused by: File not found: test.proto

Is there a way to make it work with reflection ?
Thanks

Start by reproducing the gRPCUI failure with the shared protos/test.proto and the server's Protos/stuff.proto AdditionalImportDirs configuration. Inspect how the server reflection metadata is generated and how imported proto files are packaged or resolved. Done means reflection can resolve test.proto and gRPCUI exposes the referenced methods without the file-not-found error.

Written by the indexing model from the issue text.