finish waht joe started - generalization of pointer to model data both e3sm and cesm examples work with cesm data

name change in the clouds modules to be more generic to model and add e3sm modules that are notiworking yet

This release candidate includes:

* better documentation 
* better colors in many of the plots
* the postprocessing scripts used to produce the model data

Fixes #1

* kevans32/val_v1:
  updated plots for better color schemes

A second release candidate of the LIVVkit Extensions repository to
demonstrate our extensions functionality. It lincludes the CESM
Greenland analyses for cloud cover, energy balance, and surface mass
balance, as well the CISM-Albany dynamics analyses, which will be
documented in the Evans et al. (2018) LIVVkit validation paper.

This relase candidate:
    Improves the context of all plots and tables
    Fixes some display issues in plots and tables

Fixes #20

For #20

For #20

For #20