Added tag-related DTOs and mapping
Authentication controller now returns user role
Moved Enums to Models project
Renamed PLAINTEXT format Enum to TEXTFILE
Documents to add expected in base64
Documents sent in the request are all in base64 and have enum to specify either TXT file or a ZIP file
Code cleanup
Added AutoMapper, configured, added DTO mappings
Modified DocumentListInfo
Added of UserInfo annotating users
Added Document API related DTOs
Backend - JWT Authentication done
Template code removed
Three projects split