Merge branch 'feature/support_1d_swg_simple' of https://github.com/fpjentzsch/finn into fpjentzsch-feature/support_1d_swg_simple

Merge branch 'bugfix/absorb_transpose' of https://github.com/mmrahorovic/finn into mmrahorovic-bugfix/absorb_transpose

Support for ingesting models in the QONNX format

# Conflicts:
#	docker/Dockerfile.finn
#	src/finn/builder/build_dataflow_config.py
#	tests/brevitas/test_brevitas_qlinear.py
#	tests/end2end/test_end2end_cybsec_mlp.py
#	tests/transformation/streamline/test_remove_identity_ops.py

Refactored filter lambda for ConvertQuantActToMultiThreshold transformation to only use the function for filtering.

Made QuantIdentityHandler and FoldQuantWeights compatible with DebugMarker nodes and added QONNX to the test_brevitas_debug test.

Lookup (embedding) layer support