Added export/import function for contributors

scripts/import/contributors.js

@@ -0,0 +1,26 @@
+const Kredits = require('../../lib/kredits');
+
+async function main() {
+  kredits = new Kredits(hre.ethers.provider, hre.ethers.provider.getSigner())
+  await kredits.init();
+
+  console.log(`Using Contributor at: ${kredits.Contributor.contract.address}`);
+
+  const data = fs.readFileSync("./data/contributors.json");
+  const contributors = JSON.parse(data);
+
+  const ids = Object.keys(contributors).map(k => parseInt(k)).sort();
+  for (const contributorId of ids) {
+    const contributor = contributors[contributorId.toString()];
+    const result = kredits.Contributor.contract.addContributor({
+      account: contributor.account,
+      hashDigest: contirbutor.hashDigest,
+      hashFunction: contributor.hashFunction,
+      hashSize: contributr.hashSize,
+    });
+    // await result.wait();
+    console.log(`Added contributor #${id}: ${result.hash}`);
+  };
+}
+
+main();