Group by parent feature and show linked items

Given a list of work items we only output items of a certain type.

Template

## Only show user stories

{{#workItems '$UserStory'}}

### {{ field 'Title' }}

{{/workItems}}

Id	Title	WorkItemType	Tested By
100	🍇Story 100	User Story	100
200	🍈Story 200	User Story	200
300	🍊Story 300	User Story	300
400	🍋Story 400	User Story	400
2	Epic 2	Epic	400
30	Feature 30	Feature	400