Implements CanvasView Example

Implements CanvasView Example

This is an example of Dali::Toolkit::CanvasView.
This example create a CanvasView control, create a Dali::CanvasRenderer::Shape
and add it.
Basic Primitves (rect, circle, arc) can draw and
various shapes can draw using path command.

Change-Id: I6f8c1dd262051d856c24cb51bb7dfacb4763d34b