Add nginx-dav-ext-module

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "nginx-dav-ext-module"]
+	path = nginx-dav-ext-module
+	url = https://github.com/arut/nginx-dav-ext-module.git

Dockerfile

@@ -1,4 +1,8 @@
 FROM nginx
+
+ADD nginx-dav-ext-module /
+RUN cd nginx-dav-ext-module && ls
+
 ENV VOUCH_INTERNAL=vouch:9090
 ADD nginx.conf.template /
 ADD docker-entrypoint.d /docker-entrypoint.d