add_leaf_list: Phylogenetic tree leaf
In QuantumClone: Clustering Mutations using High Throughput Sequencing (HTS) Data

Adds a leaf to an already built tree. Output is a list of all possibilities.

1	add_leaf_list(leaf, connexion_list, timepoints, d, selector_position)

`leaf`	A vector of cellularities (ranging from 0 to 1)
`connexion_list`	List containing 1. An interaction matrix concatenated with the cellularity of each cluster (one line per cluster)
`timepoints`	A numeric vector giving the spatial and/or temporal distribution of the samples
`d`	The initial number of clusters
`selector_position`	The row of the studied leaf in the data frame.