Planet resources

* Added missing table that should store a planet's resources data
(income and upkeep for each type of resource).

* Modified resource definition functions and universe generator to
initialise planet resource records as well

* Heavy clean-up in resource definition function unit tests

legacyworlds-server-data/db-structure/tests/user/040-functions/025-resources/005-add-resource-records.sql

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