Report Generator KeyError Exception Due to Missing Color Mapping

[AlexCatarino]

Expected Behavior

The Report generator generated Exposure chart for all securities types.

Actual Behavior

KeyError when the portfolio contains Index Options on ReportCharts.py#L964:L967, since there is no IndexOption key in those dictionaries.

Potential Solution

N/A

Reproducing the Problem

Generate a report using the following file: 3428b32e4ada5889b13e82eeb8d65a66.json

Checklist

• [x] I have completely filled out this template
• [x] I have confirmed that this issue exists on the current master branch
• [x] I have confirmed that this is not a duplicate issue by searching issues
• [x] I have provided detailed steps to reproduce the issue