Ignore clippy::struct_field_names lint

```
error: field name ends with the struct's name
  --> src/cli.rs:19:5
   |
19 |     pub(crate) leading_args: Vec<String>,
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#struct_field_names
   = note: `-D clippy::struct-field-names` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::struct_field_names)]`

error: field name ends with the struct's name
  --> src/cli.rs:20:5
   |
20 |     pub(crate) trailing_args: Vec<String>,
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#struct_field_names

error: field name starts with the struct's name
  --> src/features.rs:12:5
   |
12 |     features: Vec<Feature>,
   |     ^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#struct_field_names
```

src/main.rs

@@ -6,6 +6,7 @@
     clippy::cast_lossless,
     clippy::single_match_else,
     clippy::struct_excessive_bools,
+    clippy::struct_field_names,
     clippy::too_many_lines
 )]