add functional tests

These are the tests that were formerly located at
https://github.com/lonvia/test-nominatim

tests/scenes/bin/make_scenes.sh

@@ -0,0 +1,31 @@
+#/bin/bash -e
+#
+# Regenerates wkts for scenarios.
+#
+
+datadir="$( cd "$( dirname "$0" )" && cd ../data && pwd )"
+
+if [! -d "$datadir" ]; then
+ echo "Cannot find data dir."; 
+ exit -1;
+fi
+
+echo "Using datadir $datadir"
+pushd $datadir
+
+# remove old wkts
+rm $datadir/*.wkt
+
+# create wkts from SQL scripts
+for fl in *.sql; do
+    echo "Processing $fl.."
+    cat $fl | psql -d nominatim -t -o ${fl/.sql/.wkt}
+done
+
+# create wkts from .osm files
+for fl in *.osm; do
+    echo "Processing $fl.."
+    ../bin/osm2wkt $fl
+done
+
+popd