* refactor: add clang style check for samples
* fix: add .clang-format for ie
* fix: style check for missing headers
* refactor: remove cpplint for IE samples
* fix: setw is not a member of std for classification_results.hpp
* feat: add indent after ifdefine
* feat: set up google style for IE samples
* fix indents for w_dirent headers
* fix: include issues for utils.cpp due to clang-format