Universe generator: resource providers

* The universe generator has been modified to generate resource
providers. The code attempts to keep the universe balanced according to
the natural resources definitions.

legacyworlds-server-data/db-structure/tests/user/priv/functions/050-computation/010-get-random-part.sql

@@ -0,0 +1,14 @@
+/*
+ * Test privileges on verse.get_random_part()
+ */
+BEGIN;
+
+	SELECT plan( 1 );
+	
+	SELECT diag_test_name( 'verse.get_random_part( ) - Privileges' );
+	PREPARE _test_this AS
+		SELECT verse.get_random_part( 0.5 , 1 , 0.5 , 0.25 );
+	SELECT throws_ok( '_test_this' , 42501 );
+	
+	SELECT * FROM finish( );
+ROLLBACK;