fix get_related_resources and map_layers functions to filter out protected resources. deprecate get_filter_types in favor of get_allowed_types. clean up.
fix get_related_resources and map_layers functions to filter out protected resources. deprecate get_filter_types in favor of get_allowed_types. clean up.

mradamcox/afrh,mradamcox/afrh,mradamcox/afrh