feat: missing configuration warning (opentibiabr#2698)

When a configuration is missing in config.lua, you will get a warning in console.
You can ignore the warning and, this way, the default value will be used.
With the warning, you dont need to conflict your config.lua with configmanager.

src/config/config_enums.hpp

@@ -16,6 +16,7 @@ enum ConfigKey_t : uint16_t {
 	AIMBOT_HOTKEY_ENABLED,
 
 
+
 	ALLOW_BLOCK_SPAWN,
 
 	ALLOW_CHANGEOUTFIT,