Add better animations when changing screens

[haroldadmin]

Problem

• The current behaviour relies on the default animations supplied by the Navigation Architecture Component: Simple Fade-in and Fade-out While it works, it could be improved.
• The NetworkBoundResource class emits Resource.Loading first, immediately followed by the results of the database query (if it is fast). This causes a flash on the screen due to Epoxy quickly updating the screen. Consider emiting Resource.Loading initially only if there is no cached data.

[haroldadmin]

This has been fixed with version 0.9.50