Migrating DeepStream 5.0 competible model to 6.1/6.0.1/.6.0

[kelvin.chiu]

Thanks anyway although I think that parser in DeepStream and TensorRT should be related to each other. Change in TensorRT should reflect the change in DeepStream config parser as well for the engine file. Anyway, I have re-implemented the whole thing under DeepStream 6.0. I will report this problem in TensorRT later.