gpui: Add PathBuilder based on lyon to build Path (#22808)

Release Notes:

- N/A

---

Continue https://github.com/zed-industries/zed/pull/20499

We to draw more complex Path. Before this change, we only have
`line_to`, but it is not enough.

Add a new `PathBuilder` to use [lyon](https://github.com/nical/lyon) to
build more complex path.

And then with PR #22812 to enable anti-aliasing, all thing will be
perfect.
## Show case

```bash
cargo run -p gpui --example painting
```

Before:

<img width="1136" alt="image"
src="https://github.com/user-attachments/assets/0c15833a-ec95-404c-a469-24cf172cfd86"
/>

After:

<img width="1136" alt="image"
src="https://github.com/user-attachments/assets/42cfa35e-7e8f-4ef3-bb2d-b98defc62ad6"
/>

crates/gpui/Cargo.toml

@@ -108,6 +108,7 @@ thiserror.workspace = true
 util.workspace = true
 uuid.workspace = true
 waker-fn = "1.2.0"
+lyon = "1.0"
 
 [dev-dependencies]
 backtrace = "0.3"
@@ -117,6 +118,7 @@ rand.workspace = true
 util = { workspace = true, features = ["test-support"] }
 http_client = { workspace = true, features = ["test-support"] }
 unicode-segmentation.workspace = true
+lyon = { version = "1.0", features = ["extra"] }
 
 [target.'cfg(target_os = "windows")'.build-dependencies]
 embed-resource = "3.0"