account_fr: Set reconcile=true only for customers/suppliers accounts
We should add the field on all non-view accounts but set/keep it to True only for customers/suppliers accounts (and drop it from view accounts).
Reconciliation is not required for any account but it's usually done
for customers and suppliers account. If the user want to do it for more
accounts, he can customize his accounts but by default we should not force
the user to reconcile more lines than what is usually done.