Finish /pkg/conf

Importer of textfiles from RAR.
 - github.com/gabriel-vasile/mimetype
 - github.com/mholt/archiver
 - github.com/nwaples/rardecode

 Commands to complete or fix.

 env                table layouts etc.
 demozoo --new      output with newlines and formatting
 shrink             errors should not halt the command
 proof all          formatting of output
 fix archives       formatting output of this and the other fix sub-commands
 fix database       something is causing a timeout?
 fix text           duplicate messages could be consolidated with a count #1
                    > noreadme bool cannot be false (5x)
 fix zip            duplicate messages with invalid zipfile
 approve            improve layout

 more local test consts and vars into pkg/internal

 Change version to v2.0.0

 UI changes
  - https://github.com/charmbracelet/bubbles

UUID generator
  - https://github.com/oklog/ulid