Revisions to panel upgrade shares data preparation

[asatremeloy]

Changes include:

• Revised panel solution shares json file that is updated with the latest solution shares data from the LBL team (as of mid-July). Solution shares are separated by "energy" and "stock" totals.
• Updated mseg.py code that appropriately applies the differentiated "energy" and "stock" solution shares to those keys in the mseg data to produce a revised mseg_res_com_cdiv.json file.
• Formatting updates to upgrade names and keys (e.g., lower case) for improved clarity.
• Several preliminary updates to ecm_prep.py and run.py to accommodate new data (very minor changes).
• Creation of several example measures that can be used in future Scout runs (though these will require changes to installed_cost data based on data that will be shared by the Lab Call team).

[jtlangevin]

Manually translated these changes to panels branch off of master (post-v1), will build from there and close this PR.