changed access of logger,evaluator in ConfigMapper to protected

Author: BlvckBytes

src/main/java/me/blvckbytes/bbconfigmapper/ConfigMapper.java

@@ -42,8 +42,8 @@ public class ConfigMapper implements IConfigMapper {
 
   private final IConfig config;
 
-  private final Logger logger;
-  private final IExpressionEvaluator evaluator;
+  protected final Logger logger;
+  protected final IExpressionEvaluator evaluator;
   private final @Nullable IValueConverterRegistry converterRegistry;
 
   /**