Sum story points or hour estimates for any epic links

When viewing an epic, we want to see the total story points and hours estimated for all issues related to the epic (those is the Issues in Epic section).

For example:

Story issue screen has shows the desired estimate time:

But, not in Epic issue screen:

We want these fields to be available when viewing a list of issues in a filter and be included in any associated export and columns available when viewing in any of the related JIRA gadgets.

These fields are necessary to get a quick view of the total scope when viewing in JIRA as well as creating reports for additional reporting and analysis; it needs to be in the gadgets to support executive/management level reports/summaries.