Emhass

Fix
- Fixed missing command to retrieve PV power forecast when using list of values.
- Updated handling of freq definition to a pandas index.

Improvement
- Improved support for the new add-on and direct communication via the supervisor.
- The CLI now can return the version using the --version argument.
- Improved comments in forecast class.
Added
- Added unittest for csv method for weather forecast.
- Added support for passing lists of values to all forecasting methods.
Fix
- Removed dependency from PVLib Forecast class, as it has been marked as deprecated.
- Fixed failing docs builds due to uncompatible jinja2 an markupsafe versions.

Added
- Added a new input data file using pickle for tests.
- Added support to select if the logger should save to a file or not.
- Added CI workflow using github actions.
Breaking changes
- Changed package usage of configuration file path, now the user must provide the complete path including the yaml file itself.
- Changed the names of the configuration and secrets yaml files. These changes will avoid compatibility issues when using hass add-ons.

Fixed
- Cleaned unittest implementation
Added
- Added support to choose the methods for weather and load forecast from configuration file.
- Added new load cost and power production price forecasts, mainly allowing the user to load a CSV file with their own forecast.

Fixed
- Fixed tests to pass with latest changes on passing path and logger arguments.
- Updated requirements for PVLib and Protobuf.
- Removed unnecessary use of abstract classes.
- Fixed test_optimization bad setup.
- Fixed logger integration in classes
- Updated documentation
Added
- Implemented typing for compatibility with Python4
- Implemented different types of cost functions

Fixed
- Fix a recurrent previous bug when using get_loc. The correct default behavior when using get_loc is changed from backfill to ffill.