Add contacts to a Service Detail page in additional Resources

There is a need for the ability to link to Contact info on a Service detail page in the Additional Resources section. Some SD pages will list programs, for example, that do not require a full location page to be created, but do have unique contact information for each program.
Example page: https://www.mass.gov/service-details/office-of-claims-administration-oca

**Reference**
DP-6227

Review the example Service Detail page and reference DP-6227 first. Then locate how the Additional Resources section is implemented in the Mass.gov project and determine how contact information for programs can be linked without creating a full location page. Done means a Service Detail page can expose unique contact information for each listed program.

Written by the indexing model from the issue text.