Allow JIRA Roadmap plans to be embedded in JIRA dashboard similar to how it works in Confluence

Summary

The current Roadmap Gadget on JIRA do not show released versions only upcoming unreleased versions. As a user I will want to have the ability to also be able to embed the JIRA Roadmap plans in JIRA dashboards similar to how it works in Confluence pages.

With this, we will not need to go through every project just to view the roadmap. This will allow us to consolidate all the road maps on the dashboard.