Provide a plain-text formatter for the TypedResourceObjectItem field type to provide further out-of-the-box functionality

Problem/Motivation

Provide a plain-text field formatter specific to the TypedResourceObjectItem to provide further out-of-the-box functionality and to further demonstrate potential functionality.

Proposed resolution

Provide a new plain-text field formatter.

Remaining tasks

User interface changes

API changes

Data model changes

Release notes snippet

• Added custom plain-text field formatter "typed_resource_object_string" which provides three different display styles. Added tests.