text: Title: [RFC] Include data type in cli.list
  Body: If I do 
  
  ```
  export DYNACONF_DAY="@int 28"
  ```
  Now I can list the values
  ```
  dynaconf on  master [$] via 🐍 v3.7.0(dynaconf) 
  ❯ dynaconf list                
  Working in development environment 
  USERNAME: 'RiverFount'
  DAY: 28
  ```
  But the list is missing the data type.
  
  
  What I want instead is:
  
  ```
  dynaconf on  master [$] via 🐍 v3.7.0(dynaconf) 
  ❯ dynaconf list                
  Working in development environment 
  USERNAME: (str) 'RiverFount' 
  DAY: (int) 28
  ```