Add support for shrinking form responses

[rjcorwin]

This PR adds support for getting a shrunk Tangy Form Response and automatic detection when a shrunk Tangy Form Response is set on a Tangy Form. It shrink by abbreviating common property names on inputs as well as removing unnecessary properties such as label.

Example of an input, big vs. shrunk:

[chrisekelley]

This makes so much sense! If we are able to modify these property names, could we go even further? For example, these are state conditions that have little to do with the data that is used server-side (except for things like completed or disabled). Could we remove most of these - the things that don't change, such as label, and add them when rendered on client? We've already got that info in TangyFormsInfoService.getFormsInfo().

[chrisekelley]

Thought a bit more about this - tangy-form already knows the form schema - doesn't it? There is the getMeta() function that stores the form metadata. Maybe we could handle this similar to how unlocking a form feeds this metadata to the 'UNLOCK' function in tangyform-reducer?