FoodResourceType is properly used on food resource edit and add new forms
Updated "Clear Filters" functionality to work with new model
Filtering now works
Fixed slight bug with propose resource form.
Created ColoredPin model.
Incorporated ColoredPin model changes in places where color of food resource type is displayed.
Pin colors can be updated if there are any colors available.
Merge branch 'add-food-resource-types-dynamically' of https://github.com/hack4impact/gpcah into add-food-resource-types-dynamically

Conflicts:
	app/views.py
Fixed bug with displaying resources for review