Add the ability to designate Services as eligible for +1

[jpdillingham]

Determine whether this is a necessary feature. If so,

• Add a boolean column to the Services table to contain this value. Default to false.
• Update the Services model and DTOs to add this value.
• Update the Services API to accept a new boolean field representing this option in POST and PUT endpoints and persist the value to the database using the new column
• Update the Services list to include a visual indicator of whether the Service is eligible for +1
• Update the Service add/update dialog to include a checkbox for this option.

When this feature is implemented it will then be necessary to integrate the option into the Scanner to suppress +1 prompting for Services which are not eligible. Upon closure of this issue, a new issue representing this work is to be created.