convert.consensus.tree.clone.to.branch: Create trees for all merged.trees in clonevol output
Description
Take all merged/concensus trees in clonal evolution object
output of infer.clonal.models function, and convert them to branch-based
clonal evolution tree by adding additional columns and branch length scale,
=> make them ready to plot.
cluster column name (used to count variants
in each cluster/clone, and scale tree branch length
branch.scale:
values=c('none', 'sqrt', 'log2'), scale branch
length by corresponding transformations. Note, branch length will
be estimated by the number of variants in each cluster/clone