Save MAT-file to be read by MATReader object

[rouille]

This PR applies the following changes:

• refactor the the carbon analysis and the associated test to account for the new structure of the gencost attribute of the Grid object.
• copy the input.mat that holds all the information used by the simulation engine in the INPUT_DIR location on the server (see issue Save MAT-file to be read by MATReader object #75).

[danielolsen]

When the matreader branch of powersimdata is checked out (and pip installed if necessary), all tests pass. Some warnings due to deprecated imports in other packages.

PS C:\Users\dolsen\repos\iv\postreise> python -m pytest
============================= test session starts =============================
platform win32 -- Python 3.7.4, pytest-5.3.1, py-1.8.0, pluggy-0.13.1
rootdir: C:\Users\dolsen\repos\iv\postreise
collected 87 items

postreise\analyze\tests\test_carbon.py ....                              [  4%]
postreise\analyze\tests\test_congestion_surplus.py ...                   [  8%]
postreise\analyze\tests\test_curtailment.py ............                 [ 21%]
postreise\analyze\tests\test_helpers.py ....                             [ 26%]
postreise\analyze\tests\test_mwmiles.py ....                             [ 31%]
postreise\analyze\tests\test_statelines.py .....                         [ 36%]
postreise\plot\multi\tests\test_plot_bar.py ..........                   [ 48%]
postreise\plot\multi\tests\test_plot_helpers.py ...............          [ 65%]
postreise\plot\multi\tests\test_plot_pie.py ....                         [ 70%]
postreise\plot\multi\tests\test_plot_shortfall.py .........              [ 80%]
postreise\plot\tests\test_plot_shadowprice.py .........                  [ 90%]
postreise\process\test\test_transfer.py ..                               [ 93%]
postreise\tests\test_mocks.py ......                                     [100%]

============================== warnings summary ===============================
C:\Python37\lib\site-packages\win32\lib\pywintypes.py:2
  C:\Python37\lib\site-packages\win32\lib\pywintypes.py:2: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
    import imp, sys, os

C:\Python37\lib\site-packages\jinja2\utils.py:485
  C:\Python37\lib\site-packages\jinja2\utils.py:485: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working
    from collections import MutableMapping

C:\Python37\lib\site-packages\jinja2\runtime.py:318
  C:\Python37\lib\site-packages\jinja2\runtime.py:318: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working
    from collections import Mapping

-- Docs: https://docs.pytest.org/en/latest/warnings.html
======================= 87 passed, 3 warnings in 3.32s ========================

[rouille]

This what I have got after the your commit:

(v1) [~/REM/PostREISE] (save_grid_mat) brdo$ pytest .
================================================================ test session starts ================================================================
platform darwin -- Python 3.6.5, pytest-4.5.0, py-1.8.0, pluggy-0.13.0
rootdir: /Users/brdo/REM/PostREISE
collected 87 items                                                                                                                                  

postreise/analyze/tests/test_carbon.py ....                                                                                                   [  4%]
postreise/analyze/tests/test_congestion_surplus.py ...                                                                                        [  8%]
postreise/analyze/tests/test_curtailment.py ............                                                                                      [ 21%]
postreise/analyze/tests/test_helpers.py ....                                                                                                  [ 26%]
postreise/analyze/tests/test_mwmiles.py ....                                                                                                  [ 31%]
postreise/analyze/tests/test_statelines.py .....                                                                                              [ 36%]
postreise/plot/multi/tests/test_plot_bar.py ..........                                                                                        [ 48%]
postreise/plot/multi/tests/test_plot_helpers.py ...............                                                                               [ 65%]
postreise/plot/multi/tests/test_plot_pie.py ....                                                                                              [ 70%]
postreise/plot/multi/tests/test_plot_shortfall.py .........                                                                                   [ 80%]
postreise/plot/tests/test_plot_shadowprice.py .........                                                                                       [ 90%]
postreise/process/test/test_transfer.py ..                                                                                                    [ 93%]
postreise/tests/test_mocks.py ......                                                                                                          [100%]

============================================================= 87 passed in 3.12 seconds =============================================================

[danielolsen]

Seems like in 3.7 they started throwing some warnings so that they could break backward compatibility in 3.8. You're still on 3.6 so they leave you alone. It's like my old VW diesel: it predated the emissions cheating scandal, the rules were looser back then so I'm still grandfathered in.

[rouille]

The copy of the file has been tested with a test scenario.