[Feature] - Clean up Script list command

[ddymko]

The current implementation of script list gets a bit messy when there are larger/longer scripts present

Example:

➜  ~ vultr-cli script list
SCRIPTID	DATE CREATED		DATE MODIFIED		TYPE	NAME	SCRIPT
565344		2019-08-06 22:01:58	2019-08-06 22:16:16	boot	b	#!/bin/sh

cd ~

touch hello.txt
touch againagain.txt
565345	2019-08-06 22:02:20	2019-08-06 22:02:20	pxe	p	#!ipxe
# NOTE: This is an example that boots CoreOS. You'd need to add your SSH key before this would work

set base-url http://stable.release.core-os.net/amd64-usr/current

kernel ${base-url}/coreos_production_pxe.vmlinuz sshkey="ssh-rsa AAAA..." cloud-config-url=http://169.254.169.254/2014-09-12/coreos-init
initrd ${base-url}/coreos_production_pxe_image.cpio.gz
boot

You lose a bit of visibility into the information about the script itself. We should try to clean this up where we move the script contents into its own command.

So script list should be cleaned up to look something like this:

➜  ~ vultr-cli script list
SCRIPTID	DATE CREATED		DATE MODIFIED		TYPE	NAME
565344		2019-08-06 22:01:58	2019-08-06 22:16:16	boot	b	
565345	        2019-08-06 22:02:20	2019-08-06 22:02:20	pxe     p	

We remove the script field from this call.

Now we should introduce a new command vultr-cli script [script_id] or vultr-cli script [script_id] contents/list

Not entirely sure what the best sub-command will be for this. Either way the goal here is to allow users to see the contents of their script