modified inflectiones/inflectio.py and inflectiones/languages/grc/inflectio.py : added default method inflect_from_logotheras_entry()
modified inflectiones/languages/grc/verbthem.py; in VerbThem.inflect_from_logotheras_entry, the "AIndPerfect_plus" keyword has been taken in account
modified inflectiones/languages/grc/ho.py : first draft