Nodered.py

- create template files
- remove unnecessary code
- apply "min", "max", "step" of "SpinnerProperty" correctly
- add "height" to "ListProperty", "DictProperty"

<br/>

- divide "NodeProperty" to multiple Property classes
- for input, InputProperty
- for list, ListProperty
- for dict(json), DictProperty
- for spinner, SpinnerProperty
- for combobox, ComboBoxProperty

<br/>

- type support for "list" and "dict"
- add "display_icon" parameter to "NodeProperty"
- if None, set icon by "type" of property

<br/>

- Initial Release

<br/>