Fix: Make extension publicly available

pg/test/0.0.1/sql/90_permissions.sql

@@ -0,0 +1,18 @@
+SELECT cdb_crankshaft._cdb_random_seeds(1234);
+
+-- Use regular user role
+SET ROLE test_regular_user;
+
+-- Add to the search path the schema
+SET search_path TO public,cartodb,cdb_crankshaft;
+
+-- Exercise public functions
+SELECT ppoints.code, m.quads
+  FROM ppoints
+  JOIN cdb_moran_local('ppoints', 'value') m
+    ON ppoints.cartodb_id = m.ids
+  ORDER BY ppoints.code;
+SELECT round(cdb_overlap_sum(
+  '0106000020E61000000100000001030000000100000004000000FFFFFFFFFF3604C09A0B9ECEC42E444000000000C060FBBF30C7FD70E01D44400000000040AD02C06481F1C8CD034440FFFFFFFFFF3604C09A0B9ECEC42E4440'::geometry,
+  'values', 'value'
+), 2);