WIP: fonctions d'import de semestres monomodules, suite

app/formations/edit_ue.py

app/formsemestre/import_from_descr.py

app/models/formations.py

app/models/moduleimpls.py

app/models/modules.py

app/scodoc/sco_excel.py

app/templates/formsemestre/import_from_description.j2

app/templates/formsemestre/import_from_description_result.j2

app/views/notes_formsemestre.py

migrations/versions/bc85a55e63e1_add_dispositif_descr.py