[Streaming] Stop using @types/node in botframework-streaming

## Versions
What package version of the SDK are you using. **4.7.1**

## Describe the bug
In the NamedPipeServer we have direct type dependencies on classes from the `"net"` module. We should use the library abstractions to avoid unclear type dependencies on Node.js builtins.


## Additional context
Related to https://github.com/microsoft/botbuilder-js/pull/1575

[bug]
