add 'Constant' operation (AIV-666)

[yulikaplunovsky]

i am getting this error:
Generating the quantization table:
Constant is not supported on esp-dl yet

is the 'Constant' operation supported?

I generated my onnx file from the mmpose project, using mmdeploy
https://github.com/open-mmlab/mmdeploy
python tools/deploy.py
configs/mmpose/pose-detection_onnxruntime_static.py
td-hm_hrnet-w32_8xb64-210e_coco-256x192.py
td-hm_hrnet-w32_8xb64-210e_coco-256x192-81c58e40_20220909.pth
demo/resources/human-pose.jpg
--work-dir deploy_onnxruntime_static
--device cpu