[GSC] Add dockerfile and manifest file for tensorflow ResNet50 and BE…

[sahason]

…RT models gsc image

Signed-off-by: Sonali Saha [email protected]

Description of the changes

TensorFlow examples for ResNet50 and BERT models. The samples run inference using pre-trained models in GSC.

How to test this PR?

Please follow steps present at Tools/gsc/test/tensorflow/README.md

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This change is 

[sahason]

@mkow I have addressed review comments. Please provide your inputs. If everything looks fine request to approve this PR.