Updates Filter Resource Logic

MR Overview

This MR updates the filter_resources logic to make it easier to maintain.

How It Works

The filter_resources logic loops through a map of the conditions and their appropriate filters.

To do this, we have split up the filter_resources method to loop through each individual resource and send it to the filter_resource method.

The filter_resource method is what is looping through the FILTER_MAP.

The filter_resource method itself has been heavily documented with inline comments as it is a slightly more complex logic to follow than it was before.