Add Ethereum Execution Tests

playground/.gitignore

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+/target

playground/Cargo.toml

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+[package]
+name = "playground"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+lambdaworks-math ={ git = "https://github.com/lambdaclass/lambdaworks"}

playground/src/main.rs

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+use lambdaworks_math::{field::{fields::montgomery_backed_prime_fields::{IsModulus, U256PrimeField}, element::FieldElement}, unsigned_integer::element::{U256, UnsignedInteger}};
+
+#[derive(Clone, Debug)]
+struct AltBn128Modulus;
+impl IsModulus<U256> for AltBn128Modulus {
+    const MODULUS: U256 = UnsignedInteger::from_hex_unchecked(
+        "30644E72E131A029B85045B68181585D97816A916871CA8D3C208C16D87CFD47",
+    );
+}
+
+type AltBn128PrimeField = U256PrimeField<AltBn128Modulus>; 
+type AltBn128FieldElement = FieldElement<AltBn128PrimeField>;
+
+fn main() {
+    println!("{:?}", AltBn128FieldElement::from(3).value().to_string())
+}