Add a new demo

1. Setup the project locally or visit the demo site here https://imvetri.github.io/ui-editor/
2. Click Components->Div. Div is a recursive component that can move, resize, draw more divs within it and add text. These options are available because of the select option.
3. Remove select from Div and create it as a new component "Select".
4. Use Select component within the Div component.
5. If it