utils.go: New function isList() that checks is a value is an array of any

utils.go

@@ -21,6 +21,11 @@ func isFloat(v any) (ok bool) {
 	return ok
 }
 
+func isList(v any) (ok bool) {
+	_, ok = v.([]any)
+	return ok
+}
+
 func isNumber(v any) (ok bool) {
 	return isFloat(v) || isInteger(v)
 }