Make dashboard-style summary plot for each sample

[snystrom]

Include:

• Fragment size distributions
• # aligned
• # trimmed
• # align to each genome (fastq screen)
• # duplicates removed, etc. (# at each filtering step)
• FRiP scores for different peak calls

See additional list from #12

[snystrom]

Also repeat this for each metric type but split by all samples, so can browse individual report & aggregate stats between samples.

[snystrom]

• Fragsize plots inside/outside peaks
• Pearson correlations between replicates along sliding window & within peaks
• Rmd report summarizing outputs