Kedro dataset CLI commands

[datajoely]

Description

Related to the overall plug-in epic of #583 I've been thinking about both the Kedro team's own maintenance burden and what user friction I see with working with dataset contributions today.

Context

At a high level the following points contribute to this status quo:

• Datasets are hard to maintain
• Dataset contributions are welcome but the barrier is high, often prohibitively so
• Datasets that should be contributed never are
• Dataset PRs take ages to be merged/released
• Lots of copying and pasting is happening
• fsspec boilerplate overheard in every single file based class.
• Poor metrics on popularity through docs/cli telemetry.

Possible Implementation

I suggest Kedro introduce a set of CLI commands focused on this dataset workflow. We have history of these ideas in the micropackaging journey as well.

They would all follow the kedro dataset <command> pattern:

command	priority	description
pull	P0	This would accept either kedro-datasets name as per the catalog e.g. polars.GenericDataSet. It would pull the source code, add the dependencies and provide an example catalog entry. Longer term we could think about how 3rd party polyrepos could work e.g. (1) (2)
create	P0	Create class in users environment with correct structure, may need a workflow for file based (fsspec) or not. Get users contribution ready on day 1, can even include test and lint rules.
install	P2	Provide an easy wrapper over the correct pip command, adding the dependency to your project and providing an example catalog entry.
contribute	P2	Provide a workflow for pushing the results of pulls/creates back into the open source project