added the GoalService

I Just added a service that gets started the first time you open the app. it will keep running in foreground even after you exit app. (it does nothing at the moment besides listening for the goal broadcast .. you can test with

adb shell am broadcast -a com.binaryeclipse.worldcup.app.GOAL

I was thinking maybe do the same backend/site score pulling from the same service? not too sure what your idea is.

I noticed we have different versions of studio as a result you might want to ignore  .idea files when you do merge.