Automate various sys admin stuff.

Changes for 0.2.1 - 2024-01-08

• auto_cron, fix writing file out
• auto_cron template, compress the results for smart
• snmp_v2 template, compress the zfs return
• auto_cron template, fix mdadm
• default config, add distro snmp extend with default enabled
• snmp_v2 template, fix sneck extend