add & moved to validations folder; del validator/v10

internal/validation/bankAccount_validation.go

@@ -0,0 +1,19 @@
+package validation
+
+import (
+	"github.com/go-playground/validator/v10"
+	"github.com/jbub/banking/iban"
+	"github.com/jbub/banking/swift"
+)
+
+func IBANValidator(fl validator.FieldLevel) bool {
+	fieldValue := fl.Field().String()
+
+	return iban.Validate(fieldValue) == nil
+}
+
+func BICValidator(fl validator.FieldLevel) bool {
+	fieldValue := fl.Field().String()
+
+	return swift.Validate(fieldValue) == nil
+}