Added Tests for: - DisplayMode - VertexElement - VertexPositionColor (GetHashCode still fails) - VertexPositionColorTexture (GetHashCode still fails) - VertexPositionTexture - VertexPositionNormalTexture
- Implemented Properties of EffectParameter - Fixed OutOfRange behaviour in multiple collection files in graphics to match xna behaviour (which just returns null) - Implemented some methods in collection classes