add baseline for test_custom_temporal_reduction
add baeline for cartesian_mesh_coordinate_transform test
added base line and testdata for optential_intensity test
rebaseline after making teca_array_collection a teca_dataset
add baseline and data for testing shapefile mask
add baseline for rename variables test
rebaseline temporal reduction tests after bug fix
add baseline for iwv test
reduced the size of the elevation mask test data and added the baseline
add test data for the elevation_mask