Epoxy for IT Glue

This extension adds the following UI improvements and other functionality to IT Glue:

- Formatted contact phone numbers with tel: links
- An indicator showing the number of tagged items in tag fields
- An indicator showing the number of items in related item lists
- A link for creating a new core or flexible asset directly from a tag field in edit mode
- A "copy to clipboard" button for related item lists
- Datto RMM integration links point to the new UI