[fix] CEJPasswordHandler class methods to use directory for cskeys file
[fix] CEJPasswordHandler.encrypt_password to return password in hex format
[fix] CEJPasswordHandler key_length
[fix] CEJPasswordHandler os.urandom call typo
[upd] mcs cli README.md and man page
[upd] mcs cli README_DEV.md
[fix] mcs_cluster_tool/decorators.py to handle typer.Exit exception
[add] various docstrings
[add] now all 'cluster' subcommand commands working without using 'cluster' subcommand itself
[fix] 'cluster' command hidding its help message
[add] explicit names for commands
[add] help-all command to list all nested help messages in man page view
[add] rich colored tabled help
[add] table panels for cluster commands
[upd] typer dependency version and some extra indirect dependencies
[add] README.md for mcs cli tool with all command reference
[add] mcs.1 man page
[add] README_DEV.md for mcs cli tool
[fix] cmapi/CMakeLists.txt to install mcs.1 man page
