`preevy exec`

[Roy Razon]

Need a way to execute commands in a container, for debugging and troubleshooting.

I suggest the syntax preevy exec [--[no-]tty] [--[no-]interactive] <service> [command]

All the flags from the urls command should be present (--id, --tunnel-url etc.)

Pipe stderr and stdout to calling process.

Should support interactive (stdin from calling process) or one-shot.