Dart FIDL Bindings

This describes the new-style bindings that use Futures and Streams rather than callbacks.

How to generate bindings

TODO(ianloic): Describe how to write GN rules for FIDL for Dart.

FIDL types and Dart types

TODO(ianloic): Document the mapping between FIDL types and Dart types.

Connecting to FIDL services

Providing FIDL services