Epitope prediction : new module added.

-Adds genomic coordinates to predicted epitopes.
-Takes in parsed file generated from  ParseNetmhcOutput.pm and SNVs file as input.
There's also a `status_message` on line [54](https://github.com/genome/genome/pull/184/files#diff-feb25a563a256b8e981f4182bece9f3aR54).