221117 edge r trial

[alexchwong]

Additions

• Add edgeR ASE wrappers (ASE_edgeR and ASE_edgeR_timeseries) which should work identically to the limma wrappers
• Add edgeR GLM wrappers (allows users to construct their own GLM design formulas and test flexibly either using coef dropping or custom contrast vectors)

Bugfix:

• Novel splicing reference construction crashing in some situations