V2 - parcel.call

[dxinteractive]

A way to set functions on a parcel. Such as submit(), could be parcel.call.submit(). Would allow for less props to be passed into each React component, and for overriding behaviour of functions to be easily implemented. Only parcels below a setCall({fn...}) would be able to access parcel.call.fn(). Favour pure functions, this is not to be used for stateful data, and functions that are recreated with different variables through scope are questionable.