Added support for more types within EffectMaterialReader

EffectMaterialReader now can read <code>int</code>, <code>bool</code>, <code>float</code>, <code>float[]</code>, <code>Vector2</code>, <code>Vector2[]</code>, <code>Vector3</code>, <code>Vector3[]</code>, <code>Vector4</code>, <code>Vector4[]</code>, <code>Matrix</code>, <code>Matrix[]</code>, and <code>Quaternion</code>.

Tested with this two XNA code samples
http://xbox.create.msdn.com/en-US/education/catalog/sample/billboard
http://xbox.create.msdn.com/en-US/education/catalog/sample/custom_model_effect