PreBarrage: change form on graph click, edit walls

src/app/calculators/pbbassin/en.json

src/app/calculators/pbbassin/fr.json

src/app/calculators/pbcloison/en.json

src/app/calculators/pbcloison/fr.json

src/app/calculators/prebarrage/config.json

src/app/calculators/prebarrage/fr.json

.../dialog-new-pb-cloison/dialog-new-pb-cloison.component.ts

...app/components/generic-calculator/calculator.component.ts

src/app/components/pb-schema/pb-schema.component.ts

src/app/formulaire/definition/form-definition.ts

src/app/formulaire/definition/form-parallel-structures.ts

src/app/formulaire/definition/form-pb-cloison.ts

src/app/formulaire/definition/form-prebarrage.ts

src/app/formulaire/elements/formulaire-node.ts

src/app/formulaire/elements/pb-schema.ts

src/app/formulaire/elements/select-field-nub.ts