FEAT About us in V2

apps/maarch_entreprise/Views/about-us.component.html

...e/admin/contacts/contact_purposes/contact_purposes_up.php

...reprise/admin/contacts/contact_types/contact_types_up.php

apps/maarch_entreprise/img/maarch_box.png

apps/maarch_entreprise/img/maarch_box.svg

apps/maarch_entreprise/js/angular/app/about-us.component.ts

apps/maarch_entreprise/js/angular/app/app-routing.module.ts

apps/maarch_entreprise/js/angular/app/app.module.ts

apps/maarch_entreprise/js/angular/lang/lang-en.ts

apps/maarch_entreprise/js/angular/lang/lang-fr.ts

apps/maarch_entreprise/lang/en.php

apps/maarch_entreprise/lang/fr.php

apps/maarch_entreprise/maarch_credits.php

apps/maarch_entreprise/template/header.html