Add context help/info button to products on forecast viewer

Describe the New Feature

To help users, add an info button/context help (?) to click and pop up info on each product. Information could include hints that users can select the levels using the vertical selector on the left, for example.

Acceptance Testing

List input data types and sources. Describe tests required for new functionality.

Time Estimate

Estimate the amount of work required here. Issues should represent approximately 1 to 3 days of work.

Sub-Issues

Consider breaking the new feature down into sub-issues.

[ ] Add a checkbox for each sub-issue here.

Relevant Deadlines

List relevant project deadlines here or state NONE.

Define the Metadata

Assignee

[ ] Select engineer(s) or no engineer required
[ ] Select scientist(s) or no scientist required

Labels

[ ] Select component(s)
[ ] Select priority

Projects and Milestone

[ ] Select Project
[ ] Select Milestone as the next official version or Backlog of Development Ideas

New Feature Checklist

[ ] Complete the issue definition above, including the Time Estimate and Funding source.
[ ] Fork this repository or create a branch of develop. Branch name: feature_<Issue Number>/<Description>
[ ] Complete the development and test your changes.
[ ] Add/update log messages for easier debugging.
[ ] Add/update tests.
[ ] Add/update documentation.
[ ] Push local changes to GitHub.
[ ] Submit a pull request to merge into develop. Pull request: feature <Issue Number> <Description>
[ ] Define the pull request metadata, as permissions allow. Select: Reviewer(s), Project, and Development issue Select: Milestone as the next official version
[ ] Iterate until the reviewer(s) accept and merge your changes.
[ ] Delete your fork or branch.
[ ] Close this issue.

NCAR / wrfcloud