Entitas 0.47.9

As always, the Unity Asset Store version might take a few days to be processed
and accepted by Unity. Please check for updates in 2 - 4 days here:
https://www.assetstore.unity3d.com/#!/content/87638

Jenny

🛠 Fixed issue with Entitas.Roslyn plugin and non-components with context attibute #564
🛠 Fixed auto-import not making relative search paths on Windows

Other

⚙️ Included readme files in zip
⚙️ Updated CONTRIBUTING.md and updated bee 🐝