Unity 2019.1 support - Modified to use DrawProceduralNow instead of DrawProcedural on 2019.1.

Merge pull request #13 from keijiro/dev-vfxgraph Add BakedPointCloud support

Add more data type support - Added support for int8, uint8, int16, uint16, int32, uint32, float32, float64

Project settings 

Add double precision support 

Added PackageTool script.