CORE: RSS Extension Module

## Ready State: (YES)

This pull request is related to the following JIRA tickets: https://imagex.atlassian.net/browse/LDC-165

## Requirements & Dependencies

* Views
* Features
* ImageX RSS

## Deployment Instructions

* Merge code.

## Usage/Test Instructions

* Ensure Forum RSS view exists after feature is enabled, and displays only Forum content
* Visually view the changes on the homepage.