e2e test for withdrawals L2-initiate -> forking -> L1-finalize (#143)

This test simulates the withdrawal process after a fork
At chainstart the genesis is similar to the output of the genesis script form this repo
In the next block a test account makes a deposit of 10 native tokens (forkonomic tokens)
on L2 into the bridge. The transaction was created with the script despoitForkonomicTokenIntoBridgeInL2.js.
Then this state advancement with the deposit is verified with a snark proof and submitted. See this PR for the actual state advancement:
preparing proof inputs for withdrawal e2e test zkevm-commonjs#2
After that the fork is initiated and executed. We then test the withdrawal process.

.github/workflows/testhardhat.yml

@@ -0,0 +1,30 @@
+# This workflow will do a clean install of node dependencies, build the source code and run tests across different versions of node
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions
+
+name: Main CI
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main, develop]
+
+
+jobs:
+  lint-and-test:
+    runs-on: ubuntu-latest
+
+    strategy:
+        matrix:
+          node-version: [16.x]
+          os: [ubuntu-latest]
+
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-node@v3
+      with:
+        node-version: 16
+        cache: 'npm'
+        cache-dependency-path: ./package-lock.json
+    - run: npm install
+    - run: npx hardhat test

contracts/ForkableBridge.sol

@@ -175,7 +175,7 @@ contract ForkableBridge is
     }
 
     /**
-     * @dev Allows the forkmanager to take out the forkonomic tokens
+     * @dev Allows aynone to take out their forkonomic tokens
      * and send them to the children-bridge contracts
      * Notice that forkonomic tokens are special, as they their main contract
      * is on L1, but they are still forkable tokens as all the tokens from
@@ -185,7 +185,7 @@ contract ForkableBridge is
         uint256 amount,
         bool useFirstChild,
         bool useChildTokenAllowance
-    ) public onlyForkManger onlyAfterForking {
+    ) public onlyAfterForking {
         BridgeAssetOperations.sendForkonomicTokensToChild(
             gasTokenAddress,
             amount,

hardhat.config.js

@@ -6,18 +6,9 @@ require('@nomiclabs/hardhat-etherscan');
 require('@openzeppelin/hardhat-upgrades');
 require('hardhat-dependency-compiler');
 require('hardhat-preprocessor');
-const fs = require('fs');
 
 const DEFAULT_MNEMONIC = 'test test test test test test test test test test test junk';
 
-function getRemappings() {
-    return fs
-        .readFileSync('remappings.txt', 'utf8')
-        .split('\n')
-        .filter(Boolean) // remove empty lines
-        .map((line) => line.trim().split('='));
-}
-
 /*
  * You need to export an object to set up your config
  * Go to https://hardhat.org/config/ to learn more
@@ -40,6 +31,8 @@ module.exports = {
             '@RealityETH/zkevm-contracts/contracts/mocks/PolygonZkEVMMock.sol',
             '@RealityETH/zkevm-contracts/contracts/verifiers/FflonkVerifier.sol',
             '@RealityETH/zkevm-contracts/contracts/PolygonZkEVMBridgeWrapper.sol',
+            'test/testcontract/ForkableExitMock.sol',
+            'test/testcontract/ForkableZkEVMMock.sol',
         ],
         keep: true,
     },