Add data to test pipeline execution.

* timestream-good-images/_data/CapturedColorcard.png: New file. Part of the
good timestream that will be used to test run_pipeline.
* timestream-good-images/_data/Pot.png: Likewise
* timestream-good-images/_data/PotTemplate.png: Likewise
* timestream-good-images/_data/Tray_00.png: Likewise
* timestream-good-images/_data/Tray_01.png: Likewise
* timestream-good-images/_data/Tray_02.png: Likewise
* timestream-good-images/_data/Tray_03.png: Likewise
* timestream-good-images/_data/Tray_04.png: Likewise
* timestream-good-images/_data/Tray_05.png: Likewise
* timestream-good-images/_data/Tray_06.png: Likewise
* timestream-good-images/_data/Tray_07.png: Likewise
* timestream-good-images/_data/pipeline.yml: Likewise
* timestream-good-images/_data/timestream.yml: Likewise
* timestream-good-images/2014/2014_06/2014_06_28/2014_06_28_12/timestream-good-images_2014_06_28_12_30_00_00.JPG: Likewise
* timestream-good-images/2014/2014_06/2014_06_29/2014_06_29_12/timestream-good-images_2014_06_29_12_00_00_00.JPG: Likewise