plotGeneExpression: Plot the expression of a gene
In jefferys/FusionExpressionPlot: Plot Expression Profiles for Fused Genes

For each pair of sample and gene, plot the expression for that gene in that sample.

1	plotGeneExpression(samples, genes, cohortExonExpression)

`samples`	Vector of sample names giving the expression column from the cohortExonExpression to plot. Must be the same length as the gene parameter
`genes`	Vector of gene names giving the exon rows from the cohortExonExpression to plot. Must be the same length as the sample parameter
`cohortExonExpression`	= cohort expression data frame, with the first 9 columns giving the gene model with one exon per row, and the remaining columns giving exon expression for different samples with their headings the sample names.