Data driven rating stars using vnRating directive

@hippee-lee @tsanko @kevinsproles Here is the pull request with the changes to use the vnRating directive  from toolbox common to show the review ratings. There is a related PR in the vn-toolbox-common repo. The following bugs are fixed by this change, and can be moved to the "test" status after review.

22017 (Story)
26743 (Bug)
26744 (Bug)
26964 (Bug)