Embed separate_hours in utility functions to avoid having path errors.
Changed 'ele_cost' to 'elec_cost' to be consistent.
Add docstring from'elec_cost'
Changed the variable names to match user guide.
Changed import filepath of baseline model.
Modified reference code report based on feedback from Jessica.
Add __init__ to baseline model directory.
Debugged version of sensor suitcase functions.

- Caught infinite loop in comfort and setback_non_op functions
- Changed uninitiated variables in setback_non_op
- Changed return of non-issues to empty dictionaries
- Changed import path of get_CBECS function
- Add loop for finding 'last_on' value in lighting functions
Add sensor suitcase app connecting platform to utility functions.
Fixed key error
Fixed UI for Sensor Suitcase HVAC

- Changed input for operating hours to list instead of drop_down.
- Made 'holiday' variable optional.