fix missing boost lib from ubuntu 20.04

gcontini

2021-05-20 f864724d3758da9df8583df00b202d1f578e42a3

 src/library/hw_identifier/hw_identifier_facade.hpp

@@ -29,7 +29,7 @@
    * @param strategy
    * @return
    */
   static std::string generate_user_pc_signature(LCC_API_IDENTIFICATION_STRATEGY strategy);
   static std::string generate_user_pc_signature(LCC_API_HW_IDENTIFICATION_STRATEGY strategy);
};

}  // namespace hw_identifier