Merge changes I6a17144b,I55648cc8,Ifbc6545f,Ia70cd34a,I86c87d5f

* changes:
  [WifiScoreCard] Plumb connection attempt notice
  [WifiScoreCard] Add noteSignalPoll call
  [WifiScoreCard] Plumb into WifiInjector
  [WifiScoreCard] Initial commit
  [WifiScoreCard] Add a proto for wifi score cards