add renewable energy data to recorded emissions

[sichen1234]

Based on #2, add the portion of renewable vs non-renewable energy to the utility seed data and the calculated emissions on the ledger:

1. Add columns DQ (Total Nonrenewable Generation) and DR (Total renewable generation) to the amazon dynamo database of utility data egrid dataloader
2. In emissions-calculator.js, also calculate:
   2a. renewableEnergyUseAmount = energyUseAmount * Total Renewable Generation/Total Generation
   2b. nonrenewableEnergyUseAmount = energyUseAmount * Total NonRenewable Generation/Total Generation
3. Store the following data in the ledger:
   3a. renewable energy use amount
   3b. nonrenewable energy use amount
   3c. energy use UOM
   3d. division type: NERC_REGION
   3e. division id value