add unit tests for parsing shared ssbh types

[ScanMountGoat]

• [x] SsbhArray
• [x] SsbhByteBuffer
• [x] SsbhString
• [x] RelPtr64
• [x] SsbhEnum
• [x] Matrix4x4
• [x] Matrix3x3
• [x] Vector4
• [x] Vector3
• [x] Color4f