First modifications
Trying to make it work
Separating data code
reordering of src/data/
Reordering data now compiles
Separating the tlambdas until the last minute
Merge branch 'mergelater'

These commits allow the program to merge not the cmts, but the hgraphs.
Eventually, we'll be able to parallelise the process._
Adding a vertex merging function
Merging the sub-hgraphs into one big data