test: Add PRK Stencil to test suite.
test: Add PRK Stencil to test suite.

sdalton1/legion,sdalton1/legion,sdalton1/legion,StanfordLegion/legion,sdalton1/legion,sdalton1/legion,sdalton1/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion