Convert rap abi CSR bufr data to ioda

[xyzemc]

Use the python based bufr2ioda converter in GDASApp to convert the rap dump bufr abi CSR data to ioda.
The bur2ioda python code is described in NOAA-EMC/GDASApp#1334

Start to test bufr2ioda_gsrcsr.py

[xyzemc]

Based on GDASApp/ush/ioda/bufr2ioda/bufr2ioda_gsrcsr.py and
GDASApp/parm/ioda/bufr2ioda/bufr2ioda_gsrcsr.json , minor modification has been added to both .py and .jason file, which has been put into RDASApp_1107/rrfs-test/IODA/python

Under RDASApp_1107/rrfs-test/IODA/python:
Modify .run_bufr2ioda.sh with BUFR_py="gsrcsr"

Run the python version bufr2ioda as:
./run_bufr2ioda.sh YYYYMMDDHH rap /path/to/files.bufr_d/ /path/to/templates /path/to/output.ioda/

[xyzemc]

IODA GOES_16: Brightness Temperature