Group encryption

feat: Added group encryption/decryption

Added CLIQUES algorithm for generation shared key.
Added ecnryp(ephemeral)/decryp(ephemeral) command for group.

Usage ephemeral key.

Fixed generation configuration and data directories.
Added usage ephemeral key for encryption message.
Added ephemeral-encrypt and ephemeral-decryp commands.

Added config and use-current name

feat: Added configuration

Using config.json file for configuration.
Use XDG_DATA_HOME for storage application data.
XDG_DATA_HOME use default value: $HOME/.local/share/pspk
Use XDG_CONFIG_HOME for sotrage application cofigurateion.
XDG_CONFIG_HOME use default value: $HOME/.config/pspk
Added command use-current for saving current name to config.

Fixed secrets command

Fixed args for secret command.

Publish, encrypt and decrypt data

Added generate, secret, encrypt and decrypt command to console tool.
Added simple page for loading all public keys through site.
API for uploading or downloading public part of x25519 keys.