Tax issues with incidents : are they VAT included or VAT excluded?

[Atala]

This commit e6332c2#diff-7c20304db15cf219fd12361ceb498d56553d5abee8d0a438cb0df3839394f061 implies that incidents are VAT-included when they are entered on the platform.

On this screen for a 9€ VAT included delivery we see that we enter a VAT included incident (however it is not clear to the user)

So all of this make sense. However:

• we need to make clear to users that incident are VAT included and that we just changed the previous behavior (which was faulty)
• it is quite bad as most of incidents are for B2B relationships which are billed without VAT, so it is not practical for the user to enter VAT included prices.

we could use a "VAT translator component" as we did for the react deliveryform so they can input either with or without VAT.

-> what to do next?

[Atala]

So two options

1. Incidents amounts are entered VAT-included then we keep vladimir's commit + we add the double input vat/without-vat on incident price diff form
2. Incidents amounts are entered VAT-excluded then we revert vladimir's commit + we fix the incident price diff form