Development and integration of "psychiatrie" (PSY), fourth part of PMSI

[thomashdh]

[strayMat]

Details of the necessary components, links are pointing to repo path (for these files, this leads to a 404 because they do not exist yet) :

• PsySource, PsyFilters : should mimick the behavior of HadSource and Had filters. These files serves to read and sanitize the source (flattened) data. You have also to add psy information to Sources.scala and the studyConfig.