Add an optional SQL to add the new rule to the rule_values table. Default value is unchanged.

utils/sql/git/optional/2019_06_21_new_rule_gm_level_target.sql

@@ -0,0 +1,2 @@
+INSERT INTO `rule_values` (`ruleset_id`, `rule_name`, `rule_value`, `notes`)
+VALUES (1, 'GM:MinStatusToLevelTarget', '100', 'GM status needed to use #level on your target');