Layer tests

This folder layer tests framework code and test files.

Getting Started

Install requirements:
```
pip3 install -r requirements.txt
```
Set up environment variables for layer tests (if you use wheel package path to python api could be removed):
```
export PYTHONPATH="path_to_openvino"/tests/layer_tests/:"path_to_openvino"/tools/mo:"path to python api"
```
If there is need to use specific libs it is possible to specify path to them using OV_LIBRARY_PATH env variable
```
export OV_LIBRARY_PATH="path_to_libs"
```

To parametrize tests by device and precision (optional)

export TEST_DEVICE="CPU;GPU"
export TEST_PRECISION="FP32;FP16"

py.test