Added input validation to require 2 columns separated by a single space, with at least 100 rows.
Added input validation to require 2 columns separated by a single space, with at least 100 rows.

schatzlab/genomescope,schatzlab/genomescope,schatzlab/genomescope,schatzlab/genomescope,schatzlab/genomescope,schatzlab/genomescope,schatzlab/genomescope