Add functionality to resolve external weights from safetensors and the webnn-graph weights file.

Author: mtavenrath

Cargo.toml

@@ -17,6 +17,8 @@ path = "src/main.rs"
 anyhow = "1.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
+safetensors = "0.7"
+half = "2.7.1"
 thiserror = "1.0"
 pest = "2.7"
 pest_derive = "2.7"