Checks to see if the universe is appropriate for the userSets
Anything in the userSets should be present in the universe.
In addition, 2 different regions in the userSets should not
overlap the same region in the universe
Usage
checkUniverseAppropriateness(userSets, userUniverse, cores = 1, fast = FALSE)
Arguments
userSets
Regions of interest
userUniverse
Regions tested for inclusion in userSets
cores
Number of processors
fast
Skip the (slow) test for many-to-many relationships