add test data set of junctions for chr22 only
add test data set of junctions for chr22 only

tabbott/regtools,griffithlab/regtools,griffithlab/regtools,tabbott/regtools,griffithlab/regtools,tabbott/regtools,tabbott/regtools,griffithlab/regtools,gatoravi/regtools,tabbott/regtools,griffithlab/regtools,gatoravi/regtools,gatoravi/regtools,gatoravi/regtools,griffithlab/regtools,gatoravi/regtools