Merge solar sensors into a single sun power dict.
Add solar binary sensors into a single sun power binary dict.
Add sun vault sensors into a single sun vault dict.
Add sun vault binary sensors into a single sun vault binary dict.
Modify entity to have a single entity class.
Modify sensors to utilize new solar sensor dict and optionally sun vault sensor dict including utilization of  singular sensor class.
Modify binary sensors to utilize new solar binary sensor dict and optionally sun vault binary sensor dict including utilization of singular binary sensor class.
Add method for querying energy storage system status.
Update sunpower fetch to include querying energy storage system and generating the abstract sunvault for dealing with systems containing multiple batteries.
Update readme to include information about energy storage system.
Add use ess option to config flow.