FEAT #10529 TIME 3:30 add front print separator

modules/entities/xml/services.xml

src/frontend/app/app-routing.module.ts

src/frontend/app/app.module.ts

.../separator/print-separator/print-separator.component.html

.../separator/print-separator/print-separator.component.scss

...pp/separator/print-separator/print-separator.component.ts

src/frontend/lang/lang-en.ts

src/frontend/lang/lang-fr.ts

src/frontend/lang/lang-nl.ts