tensorflow2 running in ubuntu20.04 ros noetic

[zltrock]

will you plan to support tensorflow2 running in ubuntu20.04 ros noetic ?

[codebot]

I am not familiar with the differences between TensorFlow and TensorFlow 2. If the Python API has major changes, I'm not sure when we will be able to update this package. I'd be very happy to review a PR, though! Thanks.

[MingshanHe]

I have successfully run in the Ubuntu 20.04 ros noetic, you just need to replace the code
import tensorflow as tf
to
import tensorflow.compat.v1 as tf
and disable the tf2 is ok.