This PR sets up a `cargo xtask clippy` command for running `cargo
clippy` with our defined set of options.
The intent is to make this easier to manage as we start enabling more
Clippy rules.
Release Notes:
- N/A
https://github.com/rust-lang/rust/issues/60705
Due to modification of .cargo/config.toml your `cargo build` should pick
this change up automatically. Use `legacy` instead of `v0` if you find
yourself in need of old mangling scheme for whatever reason
Release Notes:
- Improved precision of backtraces in application crashes
