Merge pull request #9 from ipa-mig/master

Calibration data for raw3-3
update tray offset for cob3-1
using powerball tray for cob3-6
update calibration parameter for cob3-1
add calibration files for cob3-1 cameras
Merge pull request #10 from b-it-bots/master

update calibration parameter for cob3-1