Added asset.hpp and cpp
Added asset.hpp and cpp

mtconnect/cppagent,mtconnect/cppagent,mtconnect/cppagent,Ghost-script/cppagent,Ghost-script/cppagent,Ghost-script/cppagent,Ghost-script/cppagent,Ghost-script/cppagent,mtconnect/cppagent,mtconnect/cppagent,mtconnect/cppagent