Bug fix/internal issue #572 (#9110)

* Added helper method to DataStore in iresearch link for performing full data store reset. Fixed usage of data store reset.

* Fixed checking directory creation status on windows

3rdParty/iresearch/core/utils/file_utils.cpp

@@ -754,10 +754,17 @@ bool mkdir(const file_path_t path) NOEXCEPT {
     std::basic_string<std::remove_pointer<file_path_t>::type> parent(parts.dirname);
 
     if (!mkdir(parent.c_str())) {
+#ifdef _WIN32
+      if (::GetLastError() != ERROR_ALREADY_EXISTS) {
+        // failed to create parent
+        return false;
+      }
+#else
       if (errno != EEXIST) {
         // failed to create parent
         return false;
       }
+#endif
     }
   }