[Model] change ocr pre and post (#568)

* change ocr pre and post

* add pybind

* change ocr

* fix bug

* fix bug

* fix bug

* fix bug

* fix bug

* fix bug

* fix copy bug

* fix code style

* fix bug

* add new function

* fix windows ci bug

fastdeploy/utils/utils.h

@@ -22,6 +22,7 @@
 #include <sstream>
 #include <string>
 #include <vector>
+#include <numeric>
 
 #if defined(_WIN32)
 #ifdef FASTDEPLOY_LIB