Narwhals implementation of `from_dataframe` and performance benchmark #5533

Job	Run time
lint	24s
tests (macos-13, 3.10, all)	41m 28s
docs	7m 25s
tests (ubuntu-latest, 3.10, all)	36m 4s
check-examples (03-FFT-examples.ipynb)	3m 19s
check-examples (04-RNN-examples.ipynb)	6m 59s
check-examples (00-quickstart.ipynb)	7m 47s
check-examples (02-data-processing.ipynb)	3m 25s
check-examples (01-multi-time-series-and-covariates.ipynb)	9m 18s
	1h 56m 9s

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