Functions for common QC and phenotype level plots

[abearab]

• [x] transfer codes from https://github.com/mhorlbeck/ScreenProcessing/blob/master/screen_analysis.py

QC plots

• [x] #22
• [ ] Histogram of guide counts distribution
• [ ] PCA plot
  • [x] #9

phenotype plots

• [ ] Rank plot of phenotypes
• [x] Functions for phenotype volcano plots
• [ ] Functions for phenotype scatter plots

[abearab]

@isabelleliuu do you want to help adding these features?