Fixes#5311
Added the keyFile logic from the create command to the import command and moved the loadFileKey() function
to the Utils class since it is now used in both create & import classes.
* Closes#5447
* Add option `--okon <okon-cli path>` to trigger the use of the okon cli tool to process a database's entries. When using this option the `-H, --hibp` option must point to a post-processed okon file instead of the standard HIBP text file.
* Updated documentation
The best option copy the password from the best match if only one matching entry exists.
Adding clip best option documentation
Adding unit tests on the new clip --best option
