Move multi level child epics to Premium in JH release

Multi-level child epics Definition

Proposal

Feature Constraints

• This feature should be available for SaaS and self-managed
• This feature should be only available on Jihu edition
• This feature should be available on subscription and license
• This feature should be compatible with upgrade and downgrade

User Stories

Case 1

1. As a premium user
2. I can create multi-level child epics

Case 2

1. As a premium user
2. I can see the tree view of all sub epics from the parent epic

Case 3

1. As a premium user
2. I can see the roadmap view of all sub epics from the parent epic

Case 4

1. As a premium user
2. I can see the parent epic on the sub epic page

Case 5

1. As a premium user
2. After click on the roadmap menu
3. I can see the nested epics

Docs

• update docs

Screenshots

Before

header	Epic Roadmap	Epic List	Epic Detail	Issue Detail
Premium
Ultimate

After

header	Epic Roadmap	Epic List	Epic Detail	Issue Detail
Premium