Update internal format of anchor token to list for consistency with genes to perturb

Add filtering for start state cells prior to in silico perturbation when modeling cell states

Correct order of state dict in in silico perturber stats and tensor dims of alt state emb in in silico perturber

Modify quant_layers to convert layer nums to integers before calculating max

Modify documentation for modeling only 2 cell states

Add instructions for modeling only 2 states and modify stats script for that option

Add function to create remainder emb for in silico overexpression batch

Fix bug in clearing cache

Fix filter_data to allow value of None for no filtering

add in silico perturbation module