Add large mesh support and embedded textures

Bug fixes

• Large meshes are now loaded as we heap allocate scene buffers
• Apply colors if exist for a material property
• Use color and image objects instead of relying on file paths for material property

Features

• Materials with embedded textures

Internal changes

• Dependent static libs are 7z archives
• Xcode Schemes updated to extract archives

Add animation timing and event support

Adds animation CAMediaTiming, animation attributes and SCNAnimatable like support.

First Public Version

• Supports: geometry, materials, cameras and skeletal animations.
• Supports: serialization to native .scn format.
• Production Ready.

Documentation: http://assimpkit.readthedocs.io/en/latest/

Alpha Release

This is a first of a series of alpha releases.

1. Supports importing 31 file formats with geometry, materials (color and texture), lights and cameras.
2. Supports skeletal animations.
3. Installation with Carthage.

While this will work out of the box, some more work is pending, such as updating the API to provide granular import settings that Assimp supports.

The important pending feature is serialization as without this right now, you cannot reload the SCNAssimpScene instances.