Add: support to `cred` cli tool

[silentFellow]

Problem
cred is a simple yet powerful CLI tool to manage passwords, environment variables and ssh keys by encrypting them with a GPG key (inspired from GNU pass).

Feature
add a new cable called cred cable, which allows copy, show for passwords and env vars, along with connect for ssh keys.

Examples
tv cred

copy the value to system clipboard (enter shortcut).
show the value.
connect to ssh config.

Additional context
cred is GNU pass inspired cli tool, written in go. with enhancing features like auto git, editor config and so on.