DEV: get_ambient_flow and predict_search_extent now take grid_size as an argument. This allows FLOW_MARGIN and SEARCH_MARGIN to be specified in meters rather than pixels.
DEV: get_ambient_flow and predict_search_extent now take grid_size as an argument. This allows FLOW_MARGIN and SEARCH_MARGIN to be specified in meters rather than pixels.

openradar/TINT,openradar/TINT