Subschema Redux

This adds redux to subschema, replacing the existing ValueManager with a redux based backend. The api is the same but you get additional visability into the store, and are able to use the tools provided by redux.

EXPERIMENTAL

This is very experimental.

TODO:

• All tests pass when substituted manually.
• Make it a single include to switch.
• Make tests work with this code.
• Write examples for using it.
• Write redux resolver for injecting events.