Attempt to add ks.test
Revert "Attempt to add ks.test"

This reverts commit 66c6058f401ab77868b9b7b051a46e145a5d8abe.
Revert "Revert "Attempt to add ks.test""

This reverts commit 37ae32ed6778c498b7c51413f2ebddcdbb97c5c2.
Removed ks.pair test
Calculate the BC for two vectors or a list
Sub.data can now extract by metric
Updated differences comparisons
v0.2, allows to do comparisons X vs Y
Pairwise comp and distributions plots fun