Resolve "chiffrement des mots de passes databases"

Closes #16

See merge request !17

#4 => done

Closes #4

See merge request !16

#21 => done

Closes #21

See merge request !15

Resolve "Uniformisation des messages json"

Closes #20

See merge request !14

#18 => done

Closes #18

See merge request !13

#17 => done

Closes #17

See merge request !12

Update src/Utils/DBALConnectionFactory.php

See merge request !11

#15 => done

Closes #15

See merge request !10

Resolve "Fabriquer la documentation de l'API"

Closes #6

See merge request !9

#13 done

Closes #13

See merge request !8

#9 done

Closes #9

See merge request !7

#12 done

Closes #12

See merge request !6

#11 PSR2 OK

Closes #11

See merge request !5

Resolve "Ajouter les opérateurs de base"

Closes #8

See merge request !4

#2 done

Closes #2

See merge request !3

#3 done

Closes #3

See merge request !2