Import VM setup scripts

Imported from:
https://robotics.mvla.net/svn/frc971/2016/trunk/src/vagrant_dev_vm/

Change-Id: I4b4c50262d24b1c5d293f4a518525ee28c6db003
diff --git a/vm/setup_desktop.sh b/vm/setup_desktop.sh
new file mode 100755
index 0000000..d713856
--- /dev/null
+++ b/vm/setup_desktop.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+set -e
+set -u
+
+export DEBIAN_FRONTEND=noninteractive
+
+readonly PKGS=(
+  iceweasel
+  lightdm
+  mousepad
+  xfce4
+  xfce4-terminal
+)
+
+# Install all the packages that we need/want.
+for pkg in "${PKGS[@]}"; do
+  apt-get install -y -f "$pkg"
+done