Added a few extra modules (in particular enscript and ghostscript, which is needed for the agenda pdf materials) to the docker/install-extras script

 - Legacy-Id: 18283

Author: levkowetz

docker/install-extras

@@ -2,6 +2,13 @@
 
 export DEBIAN_FRONTEND=noninteractive
 sudo su - -c "apt-get update \
-	&& apt-get install -qy graphviz ghostscript apache2-utils chromium-driver \
+	&& apt-get install -qy \
+                apt-file \
+                apt-show-versions \
+                graphviz \
+                ghostscript \
+                apache2-utils \
+                chromium-driver \
+                enscript \
 	&& apt-get clean \
 	&& rm -rf /var/lib/apt/lists/*"