api_views.py:
- BUGFIX: add comma to ProjectList filter_fields
- add panel_name to PanelList filter_fields
- import django_filters to implement custom FilterSet ParameterFilter so we can filter parameter names using 'contains' in addition to 'exact'

serializers.py:
- added PararmeterFluorochromeSerializer, and add it as a field to the ParameterSerializer