Added nvi to the console image, for those who prefer that.

No net increase in image size:

Before:

$ ls -l ./dist/artifacts/burmillaos.iso
-rw-r--r-- 1 brian brian 242221056 Jun 23 07:54 ./dist/artifacts/burmillaos.iso

After adding nvi:

-rw-r--r-- 1 brian brian 242221056 Jun 23 08:05 ./dist/artifacts/burmillaos.iso

Net filesize on disk is around 476k:

$ make run
...
rancher@rancher-dev:~$ which vi
/usr/bin/vi
rancher@rancher-dev:~$ ls -l /usr/bin/vi
lrwxrwxrwx 1 root root 20 Jun 23 12:01 /usr/bin/vi -> /etc/alternatives/vi
rancher@rancher-dev:~$ ls -l /etc/alternatives/vi
lrwxrwxrwx 1 root root 12 Jun 23 12:01 /etc/alternatives/vi -> /usr/bin/nvi
rancher@rancher-dev:~$ ls -l /usr/bin/nvi
-rwxr-xr-x 3 root root 476312 Dec  4  2018 /usr/bin/nvi

images/02-console/Dockerfile

@@ -7,7 +7,7 @@ RUN apt-get update \
     && apt-get install -y --no-install-recommends iptables openssh-server rsync locales \
                            sudo less curl ca-certificates psmisc htop kmod iproute2 \
                            net-tools bash-completion wget \
-                           nano open-iscsi iputils-ping \
+                           nano open-iscsi iputils-ping nvi \
     && update-alternatives --set iptables /usr/sbin/iptables-legacy \
     && update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy \
     && rm -rf /var/lib/apt/lists/* \