Renamed GlobalInputManager to ScreenInputManager
Added DXFlatKitHelper to the VS solution

This will replace cefclient.exe and load dxflatkit.dll so DXFlatkit has
control over the render process implementation.
Implemented system to add JS values and functions.

Supports primitive types (including strings) and arrays of these
primitives types. Return values might not support arrays or special JS
types (date) yet.