Create `@validarium/domain-cs` package

[tommmyy]

• create @validarium/domain-cs package
• add the iban, phone number and birth number validation to @validarium/domain-cs
• phone number can also be validation in @validarium/validations configurable for specific country: isPhoneNumber({ prefix: ‘420’, minLength, maxLength })

[tommmyy]

This issue relates to #34