pmbootstrap/pmOS should offer a 'debug mode'

This debug mode would produce a pmOS install that

• disables splash screens on boot
• prints kernel and openrc messages to screen (pass PMOS_NO_OUTPUT_REDIRECT kernel cmdline)
• disables fde
• adds the usb hook to initramfs.
• pmbootstrap presents a big fat warning that pmos is running in 'debug mode' and should not be used for production
• modify /etc/os-release to indicate that it's pmOS-debug or something
• This would be a (non-default) parameter to pmbootstrap install, like --debug-mode or -d for short (assuming d isn't already taken.. I didn't look)
• do not install any UI
• add some kernel cmdline to have a more verbose kernel log
• install all possible -dbg subpackages?
• Install some extra tools to help with debugging:
  • evtest
  • fftest
  • gdb-server (not sure it works for armhf)
  • strace
  • sysstat (performance monitoring tools)
  • procps
  • nmap

Anything else that would be useful? Any additional tools that could be installed automatically when this is enabled to assist folks with porting/debugging their device?