Add admin verification in MeasureRequest + cs -fix

app/Http/Controllers/Api/EvaluationsController.php

app/Http/Controllers/Api/MeasuresController.php

app/Http/Controllers/Auth/LoginController.php

app/Http/Requests/EvaluationRequest.php

app/Http/Requests/MeasureRequest.php

app/Models/DangerLevelEvaluation.php

app/Models/Measure.php

lang/fr/validation.php

routes/api.php

tests/Feature/DangersControllerTest.php

tests/Feature/EvaluationsControllerTest.php

tests/Feature/MeasuresControllerTest.php