Added tests for 4 more layers
Added tests for 4 more layers

miaecle/deepchem,ktaneishi/deepchem,lilleswing/deepchem,deepchem/deepchem,lilleswing/deepchem,miaecle/deepchem,ktaneishi/deepchem,ktaneishi/deepchem,miaecle/deepchem,deepchem/deepchem,peastman/deepchem,peastman/deepchem,lilleswing/deepchem