* Check Rust formatting on pull requests
This should help us maintain consistent style, without having unrelated style changes in pull requests from running `rustfmt`.
* cargo fmt non-generated files
* Ignore generated files
Adds support for
* `cp.async`
* `cp.async.commit_group`
* `cp.async.wait_group`
* `cp.async.wait_all`
Asynchronous copy operations are only supported by AMD Instinct GPUs, so for now we lower them as synchronous copy operations. Because of this, `cp.async.commit_group`, `cp.async.wait_group`, and `cp.async.wait_all` are no-op.
Replaces traditional LALRPOP-based parser with winnow-based parser to handle out-of-order instruction modifer. Generate instruction type and instruction visitor from a macro instead of writing by hand. Add separate compilation path using the new parser that only works in tests for now
