Add artist email and password validations to model
Add artist email and password validations to model

ajdlp/Scene,ajdlp/Scene,ormaechea/Scene,ormaechea/Scene,atp1o2/Scene,Thrashmandicoot/Scene,Thrashmandicoot/Scene,atp1o2/Scene,atp1o2/Scene,ajdlp/Scene,Thrashmandicoot/Scene,ormaechea/Scene