Clusterinfo

[anupriyatripathi]

This PR addresses #94

The make-hierarchy module now:

• reads molecules' parent mass and retention time information from the cluster-info summary file (.tsv) obtained from feature-based molecular networking
• reads library IDs from the same file
• has an input library_matches that replaces ms2_matches
• does not read adduct information (not useful so far, might re-add later)

The plot module now:

• has a boolean parameterparent-mz for itol labels

Additionally, I am modifying the TSVMolecules --> pd.DataFrame transformer to explicitly use 'cluster index' as the df index since it may not always be the first column for library match file

[ElDeveloper]

Thanks @anupriyatripathi