Revisit Halogen and React Components* recipes

[milesfrain]

I think we can make these recipes clearer for beginners.

One improvement is to apply a background color and label to each component indicating whether it is the "parent" or "child".

We should also demonstrate fewer features when possible. For example, ComponentsHalogenHooks could be broken-up into separate recipes that demonstrate:

• Child output to parent
• Parent query to child

I think sticking to a simple "counter" button would be simplest for both cases.

The other Halogen recipes ComponentsInputHalogenHooks and ComponentsMultiTypeHalogenHooks look good regarding scope.