Makes Models use common shader manager

Makes Models use common shader manager

 - In Scene3D, the responsibility for modifying the shader code or setting the shader's uniform variables was scattered across many classes.
 - When a uniform variable is added or the name of a uniform variable is changed in the shader code, there was a problem of repeating the same modification in multiple codes.
 - In this patch, one class is responsible for creating or managing Shader code, and the class name is changed to ShaderManager.
 - And by using one ShaderManager per SceneView, it is easy to manage properties that should be applied in common within SceneView.
 - Although there is no difference in use in terms of Model/SceneView API, it is helpful for code management, and performance can be improved when many Renderers share a small number of Shaders.

Change-Id: I0975921a1a7e40c453156cf9bd0b1890fc8e6526
Signed-off-by: seungho baek <sbsh.baek@samsung.com>