增加一些virus, cell的行为;
Merge branch 'master' of https://github.com/ranjiao/gamejam_projectx

Conflicts:
	Assets/Cartoon FX/CFX Prefabs (Mobile)/Electric/CFXM_ElectricityBolt+Text.prefab
	Assets/Cartoon FX/CFX Prefabs (Mobile)/Electric/CFXM_ElectricityBolt.prefab
	Assets/Cartoon FX/CFX Prefabs/Electric/CFX_ElectricityBolt+Text.prefab
	Assets/Cartoon FX/CFX Prefabs/Electric/CFX_ElectricityBolt.prefab
	Assets/Cartoon FX/Materials/Misc/CFX_Smoke_4frms.mat.orig.meta
	Assets/scripts.meta
	Assets/test_boid_2.unity.meta
	Assets/test_raymond/Models/VirusCircle.prefab