* ngraph python sample
This sample demonstrates how to execute an inference using ngraph::Function to create a network
- added sample
- added readme
- added lenet weights
* Added onnx support for C samples
* Revert "ngraph python sample"
This reverts commit 8033292dc3.
* Added onnx support for C samples
Fixed codestyle mistake
* Removed optional code
Co-authored-by: Alexander Zhogov <alexander.zhogov@intel.com>