Transcriptomics Workflow output - making data matrices explicit

[proccaserra]

issues are:

• use of compact URI for gene, transcript, exon identifiers
• use of compact URI for sample identifiers / experimental conditions
• explicit declaration of quantitation type in the data matrix

@oyadenizbeyan @sgtp
CMMI requirements:
move from free text tab delimited matrix -> self describing data matrix where all data cube dimensions are semantically tagged and the data format explicit

example from a metabolomics use cases (@sedlyarov for future discussion)
https://github.com/proccaserra/rose2018ng-notebook

[mcourtot]

PRS submitted terms to STATO. Would be nice to have explicit quantitation header and possibly convert to RDF