Added second ReadingType and MeterReading to first Usage Point.

Signed-off-by: Marty Burns <marty@hypertek.us>
Merge branch 'master' of https://github.com/MartyBurns/OpenESPI-GreenButtonCMDTest
Merge remote-tracking branch 'upstream/master'
added shared context driver samples to MartysSandbox
Merge pull request #35 from MartyBurns/master

 	added shared context driver samples to MartysSandbox and threeusagepoint test file