Add a `from_iter_slow` method to ListArray to allow convenient creati… #1237

Job	Run time
clickbench	16m 59s
commit-metadata	20s
tpch	5m 55s
bench (datafusion, DataFusion)	7m 14s
bench (random_access, Random Access)	6m 36s
bench (compress, Vortex Compression)	20m 6s
	57m 10s

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