Updated cell figure, removed unnecessary files
Added missing images
Added documentation for UsersGuide and BaseClasses
Added Google verification file
Added sitemap, image, keywords
Added documentation for Quantities, Units, and Characteristics
Added missing images
Added documentation for Connectors
Updated sitemap
Auto-update github pages
Auto-update github pages
Auto-update github pages
Auto-update github pages
Added documentation for Subregions
Updated sitemap