Rework Paperless-ngx around Caddy, network, and storage roles

paperless-ngx/roles/storage/templates/rclone.conf.j2

@@ -0,0 +1,13 @@
+[nextcloud]
+type = webdav
+url = {{ nextcloud_url }}/remote.php/dav/files/{{ nextcloud_user }}
+vendor = nextcloud
+user = {{ nextcloud_user }}
+pass = {{ obscured_pass.stdout }}
+
+[s3]
+type = s3
+provider = AWS
+access_key_id = {{ s3_access_key }}
+secret_access_key = {{ s3_secret_key }}
+region = {{ s3_region }}