Phase I: gDR integration

[ChristopherEeles]

• Update LongTable -> BumpyMatrix conversion to use as.data.table as an intermediate format
• Input LongTable -> SummarizedExperiment object into gDR pipeline
• Match BumpyMatrix from LongTable to gDR input format.
• Ensure SummarizedExperiment made from LongTable has correct names for input to gDR pipeline
• Visualize LongTable derived gDR object after running pipeline methods