KB Categories

### Description

Allow users to view and select Knowledge Base categories. The KB Categories widget provides custom templates that enhance the out of box widget. These enhancements give you more control for customizations and configurability. You can customize and style this widget using the available instance options and associated custom templates.

### Instance Options
| Option  | Property | Comments | Default Value | Source |
| ----- |:-----:| ---- | ---- | ---- |
| Template | `u_template` | Allows a custom template to be selected. | `Default value` | Instance |
| Title | `title` | Allows for customization of the title. | `Default value` | Instance |
| Bootstrap class name | `class_name` | CSS classes entered here will be applied to the column. | `Default value` | Instance |
| Bootstrap color | `color` | Determines which color the panel heading will be. | `Default value` | Instance |
| Glyph | `glyph` | Allows for customization of the icon. | `Default value` | Instance |

### Templates
| Name | Comments |
| -------- |:---|
| `nestedCategories.html` | Standard card template using nested Categories directive. |