Changed Compiler.ScanEntries to an iterator function.
- Fixed scene naming in FbxImporter.
- Removed unused material enums from the content pipeline.
- Replaced the model framework by an entity framework.
- Removed GraphicsProfile and GraphicsDeviceCapabilities.
- Added built-in parameters to Effect, and their corresponding methods.
- Removed the ContentManager.RootDirectory property.
- Removed BasicEffect, IMaterialEffect, IMatrixEffect and ITexturedEffect.
- Removed SceneNode and replaced its functionality by SceneObject.
- Removed the curve types.
- Added IsZeroLength() to all vector types.
- Added Vector3.GetRotationTo().