Customizable prompt

[Marshall-Hallenbeck]

Is your feature request related to a problem? Please describe. No issue

Describe the solution you'd like It would be nice to be able to modify the "sliver>" prompt much like metasploit does. My usecase would be specifically adding in a timestamp.

Describe alternatives you've considered I could parse the log files but there's a ton of data in there, so being able to view timestamps in the terminal would be much easier.

Additional context Initially brought this up in Slack.