adding toy sized test

[hbeale]

we should add a tiny bam input file and the three expected output files, so any changes can be minimally confirmed using md5 sums to show that the outputs are exactly the same.

[rcurrie]

Tiny paired reads in RNASeq test here:
https://github.com/UCSC-Treehouse/pipelines/tree/master/rnaseq-cgl-pipeline/samples
they process and then md5 calculated (see Makefile) as verification.