add test data for detect_nodes
rebaseline the ivt packed data after automatic z-axis unit conversions enabled
add shape files for south america
add a test for the teca_regional_moisture_flux_app
Added data for temporal reduction all iterator average test
Added data for temporal reduction all iterator test
update the baseline for potential intensity
update baseline for temporal percentile
add baseline for spectral filter app
update baseline for spectral filter change order of filter from 4 to 8
