Add ERC20 InInstruction test

processor/ethereum/TODO/contracts/tests/ERC20.sol

@@ -1,56 +0,0 @@
-// SPDX-License-Identifier: AGPL-3.0-only
-pragma solidity ^0.8.26;
-
-contract TestERC20 {
-  event Transfer(address indexed from, address indexed to, uint256 value);
-  event Approval(address indexed owner, address indexed spender, uint256 value);
-
-  function name() public pure returns (string memory) {
-    return "Test ERC20";
-  }
-
-  function symbol() public pure returns (string memory) {
-    return "TEST";
-  }
-
-  function decimals() public pure returns (uint8) {
-    return 18;
-  }
-
-  function totalSupply() public pure returns (uint256) {
-    return 1_000_000 * 10e18;
-  }
-
-  mapping(address => uint256) balances;
-  mapping(address => mapping(address => uint256)) allowances;
-
-  constructor() {
-    balances[msg.sender] = totalSupply();
-  }
-
-  function balanceOf(address owner) public view returns (uint256) {
-    return balances[owner];
-  }
-
-  function transfer(address to, uint256 value) public returns (bool) {
-    balances[msg.sender] -= value;
-    balances[to] += value;
-    return true;
-  }
-
-  function transferFrom(address from, address to, uint256 value) public returns (bool) {
-    allowances[from][msg.sender] -= value;
-    balances[from] -= value;
-    balances[to] += value;
-    return true;
-  }
-
-  function approve(address spender, uint256 value) public returns (bool) {
-    allowances[msg.sender][spender] = value;
-    return true;
-  }
-
-  function allowance(address owner, address spender) public view returns (uint256) {
-    return allowances[owner][spender];
-  }
-}