New pyvar version (v1.1.0) based on BSP 5.15-2.0.x

Documentation page: https://python.variscite.com
Package on Pypi: https://pypi.org/project/pyvar/

1.1.0:
- Update TensorFlow Lite to 2.8.0 version;
- Add support for VX delegate to run inference on NPU;
- Add support for num_threads to tflite engine;
- Add support for Cortex-M;
- ArmNN is no longer supported;
- Change domain from pyvar.dev to python.variscite.com;
- Documentation page updated.