minsar improvements needed

[falkamelung]

• simplify generate_download_command.py
• refactor dem_rsmas.py as dem_minsar.py
• refactor minsarApp.bash
• rename rsmas_insar repository to minsar
• refactor ingest_insarmaps.py
• improve create_save_hdff_runfile.py: Should not require *template file as argument
• subset.lalo option for mintpy (subset.lalo = 19.23:19.68,-155.83:-155.31) (see https://github.com/insarlab/MintPy/issues/1045 )

run_workflow.bash occasionally exits for FAILED or CANCELLED jobs. The reason is not known. We should resubmit the jobs once when this occurs.