Additional base entities

[ivan-alfonso]

I would suggest to provide additional entities. BAF provides entities for number and datetime, but some others could be added such as

• currency ($10.50, 10.50 USD, €20, 20 EUR, £5, 5 GBP, 100 JPY, ₹2500,...)
• percentage (50%, 1.25%, ten percent, half)
• boolean (true, false, yes, no, on, off)
• email
• url
• phone number (+1-555-123-4567, 555-1234, +44 20 7946 0958)
• etc...