Add RSeQC TIN.py as a quality metric for the pipeline

[DwinGrashof]

Is your feature request related to a problem? Please describe

In a project I am working on we have some doubts about the TIN/RIN (Transcript Integrity Number/RNA Integrity Number) values of a few samples. We believe we can increase the quality of our analysis if we take into account the quality of some of the samples.

Describe the solution you'd like

Since the RNAseq pipeline already utilizes RSeQC for quality assessment, I would like to propose the use of the RSeQC program TIN.py as well. This will further increase the already extensive QC of the pipeline.
http://rseqc.sourceforge.net/#tin-py

Describe alternatives you've considered

Additional context