explore using type inference for stream creation and abandoning Symbol enum

[itdaniher]

The standardization of port / chan argument types is required for the current naive instantiation code, but typesystem cleverness could potentially do typechecking / coercion at compiletime instead of runtime, assuming static token types on streams.

[itdaniher]

For now, I think I'm assuming that matching to extract from an enum guard is approximately free - this lets me defer this topic till down the road.

[itdaniher]

handled via ratpak static definition