Enable SIMD in query engine

[v0y4g3r]

What type of enhancement is this?

Performance

What does the enhancement do?

Enabling SIMD feature in arrow/datafusion related crates to exploit vectorized execution.

• https://docs.rs/crate/arrow/43.0.0/features

Implementation challenges

We need to do a thorough benchmark on execution with SIMD enabled/disabled to see how much we can gain from it.

[tisonkun]

Moved to Ideas until we have more concrete proposals.