Add functionality to use dependency features in bazel

[MarcelGep]

Currently, I haven't found a way to use dependency features in Bazel like in Cargo.

So far, I've only been able to do it by recreating the entire Cargo dependency tree in Bazel (creating a separate Rust target for each feature of a crate). If i have many dependencies with many features this can increase exponentially and thus become unclear.

This is the part within cargo:

# Features of dependencies can also be enabled in the [features] table. The syntax is "package-name/feature-name". For example:

[dependencies]
jpeg-decoder = { version = "0.1.20", default-features = false }

[features]
# Enables parallel processing support by enabling the "rayon" feature of jpeg-decoder.
parallel = ["jpeg-decoder/rayon"]

[UebelAndre]

Sorry for the delay here, do you have an idea of what the Bazel targets would look like to be able to support this? I'm not quite sure if this is an issue about crate_universe or the core rules.