Add default CIA args

[acordonez]

The CIA default args JSON is incorporated into the PMP shared files to assist the migration to conda-forge.

Files:
share/setup_default_args.py: Copy of writejson.py from CIA. Edit arguments here, then run the script to generate share/DefArgsCIA.json
share/DefArgsCIA.json: The JSON containing the default arguments. This is now included in the PMP installation.
setup.py: Added share/DefArgsCIA.json to data_files. Added commands to regenerate DefArgsCIA.json when setup.py is run.
pcmdi_metrics/driver/pmp_parser.py: Get DefaArgsCIA.json file from PMP installation, not from separate CIA package install.

Testing:
To test this, you should create a new environment without the CIA (so don't use the CDAT nightly install). Then try running the mean climate driver.

conda create -n test1
conda activate test1
conda install -c conda-forge  python=3.6 cdms2 genutil cdutil cdp matplotlib numpy proj4 jupyterlab nb_conda nb_conda_kernels
python setup.py install
conda list (verify no cia)

[acordonez]

@lee1043 @gleckler1 I found a potential solution for the CIA args issue, where we install the DefArgsCIA.json file with the other PMP data files like obs_info_dictionary.json. Let me know what you think.

[gleckler1]

@acordonez @lee1043 AO, this looks like a simple and elegant solution. I have not had a chance to test it yet but if it works, great! Looks like your plan is to 1) get this into master and 2) work with that in your experimentation with conda-forge, rather than do it one PR. Makes good sense, get the CIA issue out of the way. JL can review and merge when CI done. Great solution!

[lee1043]

@acordonez thanks for providing the guidance for testing the update. I've followed it and verified cia not included in the conda list, and confirmed demo notebook for MJO (that use PMP parser) works fine.

[acordonez]

@lee1043 Thanks for the testing and the flake8 fixes!