Integrate MOTECH with Commcare schema API

https://trello.com/c/iFJldNez/888

Integrated motech with Commcare Application Structure API.
Added classess required to parse json response.
Modified views for forms and cases.

Change-Id: Ic8afa0728a42936cd4c6e1ed590e01ba8f0fbd5b
Merge "Integrate MOTECH with Commcare schema API"