fix the use of __has_feature for compilers other than llvm

Author: wangyinz

source/dobby/common.h

@@ -1,5 +1,9 @@
 #pragma once
 
+#ifndef __has_feature
+#define __has_feature(x) 0
+#endif
+
 #include "dobby.h"
 #include "dobby/types.h"
 #include "dobby/platform_features.h"
@@ -8,4 +12,5 @@
 #include "dobby/pac_kit.h"
 
 #include "logging/logging.h"
-#include "logging/check_logging.h"
+#include "logging/check_logging.h"
+