Feat : Add counter of indirect words without HRFP filter

[RDiPiazza]

Before

As of now in the Keywords database there are counters of occurences of words per Mediatree excerpt. There are two types of counters, the ones that only count direct words (ex: Number of Changement Climatique Constat No HRFP) and the ones that count direct and indirect that validate the HRFP filter (ex: Number of Changement Climatique Constat).

After

A third type of counter would be added to the Keywords database : A counter that counts ALL occurences. Direct words but also all indirect occurences (not taking into account the HRFP filter).