Function readCSVStream

Read a stream into a Dataframe.

Warning: this is much slower than scanCSV or readCSV

This will consume the entire stream into a single buffer and then call readCSV Only use it when you must consume from a stream, or when performance is not a major consideration

---

Example

>>> const readStream = new Stream.Readable({read(){}});
>>> readStream.push(`a,b\n`);
>>> readStream.push(`1,2\n`);
>>> readStream.push(`2,2\n`);
>>> readStream.push(`3,2\n`);
>>> readStream.push(`4,2\n`);
>>> readStream.push(null);

>>> pl.readCSVStream(readStream).then(df => console.log(df));
shape: (4, 2)
┌─────┬─────┐
│ a   ┆ b   │
│ --- ┆ --- │
│ i64 ┆ i64 │
╞═════╪═════╡
│ 1   ┆ 2   │
├╌╌╌╌╌┼╌╌╌╌╌┤
│ 2   ┆ 2   │
├╌╌╌╌╌┼╌╌╌╌╌┤
│ 3   ┆ 2   │
├╌╌╌╌╌┼╌╌╌╌╌┤
│ 4   ┆ 2   │
└─────┴─────┘
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