Create DebugHelper.h

From now on, include DebugHelper.h for debug purpose.
diff --git a/lib/bcc/Sha1Helper.cpp b/lib/bcc/Sha1Helper.cpp
index 90d5ac6..f4589c9 100644
--- a/lib/bcc/Sha1Helper.cpp
+++ b/lib/bcc/Sha1Helper.cpp
@@ -14,13 +14,11 @@
  * limitations under the license.
  */
 
-#define LOG_TAG "bcc"
-#include <cutils/log.h>
-
 #include "Sha1Helper.h"
 
 #include "Config.h"
 
+#include "DebugHelper.h"
 #include "FileHandle.h"
 
 #include <string.h>