feat: Add Substrait-based ODFV transformation

[tokoko]

What this PR does / why we need it:
This PR introduces a new ODFV transformation type, based on substrait. The rationale behind the feature is described in an issue #3945. PR also adds a simple way for users to express substrait transformations using ibis. ibis and ibis-substrait librarie dependencies are added under an extra called ibis for users willing to use this feature.

The way to express substrait-based ODFV is pretty similar to the existing pandas-based version, the only difference being that the user-defined function must have a return type of ibis.expr.types.relations.Table instead of pandas.DataFrame.

from ibis.expr.types import Table
@on_demand_feature_view(
    sources=[driver_stats_fv[["conv_rate", "acc_rate"]]],
    schema=[Field(name="conv_rate_plus_acc_substrait", dtype=Float64)],
)
def substrait_view(inputs: Table) -> Table:
    return inputs.select(
        (inputs["conv_rate"] + inputs["acc_rate"]).name("conv_rate_plus_acc_substrait")
    )

Which issue(s) this PR fixes:
Fixes #3945

[HaoXuAI]

Something can try is creat a FeastTable or FeastDataframe class that wrap pandas df and other table etc.

[tokoko]

You mean like an abstraction on top of both? But that would necessitate whole API for transformations around it and in the end we would essentially be recreating ibis.

[HaoXuAI]

Maybe just a type class that can be accepting different apis. Anyway I'm not sure how to implement it yet. I think it looks good with your implementation

[HaoXuAI]

I think this is a great feature that should include in the documentation somewhere

[tokoko]

Thanks, I'll follow up shortly with a PR for doc changes.

[sudohainguyen]

hey this is a cool feature, would love to see the RFC or something similar to have a deeper understanding about your idea

[tokoko]

@sudohainguyen hey, I shared this document a couple months back on slack. It's a first draft for a RFC, somewhat incomplete though. I should probably request access to RFC google folder and turn this into a real RFC document.