feat: 集成Tesseract源码到项目中

Description:   由于仓库中的Tesseract不是最新版本导致产生了一个bug，因此将Tesseract源码集成到项目中

Log: no
Change-Id: I088de95d6c6ab670406daa8d47ed2ed46929c2c0

3rdparty/tesseract_ocr/tesseract/src/ccmain/werdit.h

@@ -0,0 +1,34 @@
+/**********************************************************************
+ * File:        wordit.h
+ * Description: An iterator for passing over all the words in a document.
+ * Author:      Ray Smith
+ * Created:     Mon Apr 27 08:51:22 BST 1992
+ *
+ * (C) Copyright 1992, Hewlett-Packard Ltd.
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
+ ** http://www.apache.org/licenses/LICENSE-2.0
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
+ ** limitations under the License.
+ *
+ **********************************************************************/
+
+#ifndef WERDIT_H
+#define WERDIT_H
+
+#include "rect.h" // for TBOX
+
+namespace tesseract {
+
+class PAGE_RES;
+class PAGE_RES_IT;
+
+PAGE_RES_IT *make_pseudo_word(PAGE_RES *page_res, const TBOX &selection_box);
+
+} // namespace tesseract
+
+#endif