dc_load.py: Added xarray_concat_and_merge(), merge_datasets(), and load_simple(). Added ability to load data with multiple time ranges to load data not ocntiguous in time in load_multiplatform().
dc_load.py: Added xarray_concat_and_merge(), merge_datasets(), and load_simple(). Added ability to load data with multiple time ranges to load data not ocntiguous in time in load_multiplatform().

ceos-seo/data_cube_utilities