Adds steps logic for the register form.

addons/godot-form-validator/validators/range_validator.gd

@@ -0,0 +1,15 @@
+@tool
+extends Validator
+class_name RangeValidator
+
+
+func get_value(control: Control):
+	var range_control = control as Range
+	if not range_control:
+		return null
+	return range_control.value
+
+
+func is_type(node) -> bool:
+	return node is Range and \
+		not (node is ScrollBar or node is ProgressBar or node is TextureProgressBar)