move deploySponsor.ts from tasks to cli

contracts/cli/deploySponsor.ts

@@ -0,0 +1,23 @@
+/**
+ * Deploy an instance of the BrightID sponsor contract
+ *
+ * Sample usage:
+ *
+ * HARDHAT_NETWORK=localhost yarn ts-node cli/deploySponsor.ts
+ */
+import { ethers } from 'hardhat'
+
+async function main() {
+  const SponsorContract = await ethers.getContractFactory('BrightIdSponsor')
+  const sponsor = await SponsorContract.deploy()
+  console.log('Deployed the sponsor contract at', sponsor.address)
+}
+
+main()
+  .then(() => {
+    process.exit(0)
+  })
+  .catch((err) => {
+    console.error(err)
+    process.exit(-1)
+  })