Initial update for KPP-Standalone plotting example

gcpy/examples/__init__.py
- Import all routines in scripts contained in the
  gcpy/examples/kpp folder

gcpy/examples/kpp/kppsa_visualize.py
- Initial commit of script to visualize output from the KPP standalone
  model.  Places plots of each species from all sites sorted from
  the North Pole to the South Pole.  Further updates will be necessary.

CHANGELOG.md
- Updated accordingly

Signed-off-by: Bob Yantosca <yantosca@seas.harvard.edu>

Author: yantosca

CHANGELOG.md

@@ -10,6 +10,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Added module `benchmark_gcclassic_stats.py` for scraping statistics from GEOS-Chem Classic cloud benchmarks
 - Added dry deposition velocity comparison plots in 1-month cloud benchmarks
 - Added `gcpy/benchmark/modules/benchmark_species_changes.py` to compute the table of species changes between versions
+- Added `gcpy/examples/kpp/kppsa_visualize.py` script to plot output from the KPP-Standalone box model
 
 ### Changed
 - Changed format of `% diff` column from `12.3e` to `12.3f` in benchmark timing tables 

gcpy/examples/__init__.py

@@ -5,6 +5,7 @@
 #from .bpch_to_nc import *
 from .diagnostics import *
 from .dry_run import *
+from .kpp import *
 from .plotting import *
 from .timeseries import *
 from .working_with_files import *