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/ccstruct/params_training_featdef.cpp

@@ -0,0 +1,43 @@
+///////////////////////////////////////////////////////////////////////
+// File:        params_training_featdef.cpp
+// Description: Utility functions for params training features.
+// Author:      David Eger
+// Created:     Mon Jun 11 11:26:42 PDT 2012
+//
+// (C) Copyright 2012, Google Inc.
+// 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.
+//
+///////////////////////////////////////////////////////////////////////
+
+#include <cstring>
+
+#include "params_training_featdef.h"
+
+namespace tesseract {
+
+int ParamsTrainingFeatureByName(const char *name) {
+  if (name == nullptr) {
+    return -1;
+  }
+  int array_size =
+      sizeof(kParamsTrainingFeatureTypeName) / sizeof(kParamsTrainingFeatureTypeName[0]);
+  for (int i = 0; i < array_size; i++) {
+    if (kParamsTrainingFeatureTypeName[i] == nullptr) {
+      continue;
+    }
+    if (strcmp(name, kParamsTrainingFeatureTypeName[i]) == 0) {
+      return i;
+    }
+  }
+  return -1;
+}
+
+} // namespace tesseract