feat: compute vk commitment script

Author: MarcosNicolau

examples/circom/src/get_vk_commitment.rs

@@ -0,0 +1,14 @@
+use aligned_sdk::common::types::ProvingSystemId;
+use alloy::{hex, primitives::Keccak256};
+
+fn main() {
+    let vk_bytes =
+        std::fs::read("circuits/verification_key.json").expect("verification key to be created");
+
+    let mut hasher = Keccak256::new();
+    hasher.update(vk_bytes);
+    hasher.update([ProvingSystemId::CircomGroth16Bn256 as u8]);
+    let vk_commitment = hasher.finalize().0;
+
+    println!("VK COMMITMENT IS: `0x{}`", hex::encode(vk_commitment));
+}