Missing CHE and CHW currencies

[philipheimboeck]

The following currencies of the WIR Bank are currently not supported, but are part of ISO 4217

• CHE, 947, WIR Euro
• CHW, 948, WIR Franc

Guess besides the translations in the resource, the following should be added to the repository.

// src/Currency/CurrencyRepository.php
protected function getBaseDefinitions(): array
{
        return [
            // ....
            'CHE' => ['947', 2],
            'CHW' => ['948', 2],
       ];
}

[bojanz]

We filter out every currency defined by ISO to be a "fund":
https://github.com/commerceguys/intl/blob/master/scripts/generate_currency_data.php#L90

I am not sure we want to change that in this library.

Could you tell us your use case?

[philipheimboeck]

Our customers use this currency in Swiss for B2B. Basically they send invoices and payments in this currency to other companies. Because we want to offer them to be able to create and send these invoices and import payment statements into our system, we need to also support these currencies.