adapt renderd.conf and add compilation of cyclosm style

cyclosm/renderd.conf

@@ -0,0 +1,21 @@
+; BASIC AND SIMPLE CONFIGURATION:
+
+[renderd]
+stats_file=/run/renderd/renderd.stats
+socketname=/run/renderd/renderd.sock
+num_threads=4
+tile_dir=/var/cache/renderd/tiles
+
+[mapnik]
+plugins_dir=/usr/lib/mapnik/3.1/input
+font_dir=/usr/share/fonts
+font_dir_recurse=true
+
+; ADD YOUR LAYERS:
+[default]
+URI=/tile/
+TILEDIR=/var/cache/renderd/tiles
+XML=/data/style/mapnik.xml
+HOST=localhost
+TILESIZE=256
+MAXZOOM=20