Use A Special TPG Algorithm Classifier.

[aeoranday]

I've added a new class whose only function is to interpret the TPG processing steps, their order, and return the algorithm that matches. However, tpglibs has made the algorithms for TPG modular and likely difficult to keep track of, so the matching is very limited to the algorithms that were used in v4.

This was tested in local sessions by varying the processing steps and checking the resultant algorithms with

from trgtools import TPReader
tpr = TPReader(<filename>)
tpr.read_all_fragments()
print(tpr['algorithm'])