v0.1.1

This fixed loopback_iso_entry due to naming requirements of following boot stages:

• by renaming isopath => iso_path.

Added release script to create grub-iso-multiboot.tar.gz.

running:
  ✔ - archlinux-2021.09.01-x86_64.iso                   @done (2021-09-29 03:00)
  ✔ - kali-linux-2021.3-live-amd64.iso                  @done (2021-09-29 03:00)
  ✔ - systemrescue-8.04-amd64.iso                       @done (2021-09-29 03:00)
  ✔ - ubuntu-20.04.3-desktop-amd64.iso                  @done (2021-09-29 03:00)
  ✔ - ubuntu-20.04.3-live-server-amd64.iso              @done (2021-09-29 03:00)

v0.0.1

running:
  ✔ - archlinux-2021.06.01-x86_64.iso                   @done (2021-06-13 21:52)
  ✔ - kali-linux-2021.3-live-amd64.iso                  @done (2021-09-28 05:02)
  ✔ - systemrescue-8.03-amd64.iso                       @done (2021-06-13 21:52)
  ✔ - ubuntu-20.04.2.0-desktop-amd64.iso                @done (2021-06-13 21:52)