[FIX] RegForm Angular: field dialogs data init
[FIX] RegForm Angular: field dialogs binding
[REF] RegForm: Field dialog tpls in several files
[FIX] RegForm Angular: YesNo fields not rendering
Merge branch '1068-angular-reg-form' of github.com:OmeGak/indico into OmeGak-1068-angular-reg-form