[Form] Implement "Icon Tab Bar" widget for Form Designer

[g051051]

Is your feature request related to a problem? Please describe. I'm building a UI that requires a "tabbed" element that can switch between multiple "pages".

Describe the solution you'd like Add the "Icon Tab Bar" widget from https://www.codbex.com/documentation/platform/widgets/ to the Form Designer.

Describe alternatives you've considered Writing a custom tab control. I'm not an expert in Javascript, so this would be difficult.

Additional context