Add some standard instances for Encoding, to ease debugging
Add some standard instances for Encoding, to ease debugging

dmjio/aeson,sol/aeson,SeanRBurton/aeson,sol/aeson,timmytofu/aeson,lykahb/aeson,bwo/aeson,sol/aeson,jkarni/aeson,neobrain/aeson,23Skidoo/aeson,abbradar/aeson,neobrain/aeson,roelvandijk/aeson,roelvandijk/aeson,aelve/json-x,nurpax/aeson