Implement a date picker for code hotspots
Problem to solve
Currently users cannot select a specific date for code hotspots, which means that they cannot drill down during a specific sprint since we only provide last 30 days periods.
As per the design here: https://gitlab.com/gitlab-org/gitlab-ee/issues/12683
Permissions and Security
Inline with the rest of the analytics pages now, this feature will be available for Premium users only.
Users should only see groups/projects/subgroups that they have a reporter access to and above.
For gitlab.com, we will only show the groups, projects, subgroups that fall under namespaces of silver (aka premium) and above. For on prem: only instances on premium and above.