feat(log): includes uid in summary for account create and login
feat(log): includes uid in summary for account create and login

Closes #1225

shane-tomlinson/fxa-auth-server,TDA/fxa-auth-server,mozilla/fxa-auth-server,eoger/fxa-auth-server,TDA/fxa-auth-server,mozilla/fxa-auth-server,mozilla/fxa-auth-server,eoger/fxa-auth-server,shane-tomlinson/fxa-auth-server,TDA/fxa-auth-server,eoger/fxa-auth-server,mozilla/fxa-auth-server,eoger/fxa-auth-server,shane-tomlinson/fxa-auth-server,TDA/fxa-auth-server,shane-tomlinson/fxa-auth-server