adaptation of obs_getmeasuredatamulti that can return geoms from a boundingbox

src/pg/test/expected/01_install_test.out

@@ -1,5 +1,6 @@
 -- Install dependencies
 CREATE EXTENSION postgis;
 CREATE EXTENSION postgres_fdw;
+CREATE EXTENSION plpythonu;
 -- Install the extension
 CREATE EXTENSION observatory VERSION 'dev';