Added message string for require() (#1704)

* Error handling in ERC20 and ERC721

* Added message string for require.

* Fixed solhint errors.

* Updated PR as per issue #1709

* changes as per #1709 and openzeppelin forum.

* Changes in require statement

* Changes in require statement

* build pipeline fix

* Changes as per @nventuro's comment.

* Update revert reason strings.

* Fianal update of revert reason strings.

* WIP: Updating reason strings in test cases

* WIP: Added changes to ERC20 and ERC721

* Fixes linting errors in *.tes.js files

* Achieved 100% code coverage

* Updated the test cases with shouldFail.reverting.withMessage()

* Fix package-lock.

* address review comments

* fix linter issues

* fix remaining revert reasons

test/cryptography/ECDSA.test.js

@@ -118,8 +118,9 @@ contract('ECDSA', function ([_, other]) {
       it.skip('reverts', async function () {
         // Create the signature
         const signature = await web3.eth.sign(TEST_MESSAGE, other);
-        await shouldFail.reverting(
-          this.ecdsa.recover(TEST_MESSAGE.substring(2), signature)
+        await shouldFail.reverting.withMessage(
+          this.ecdsa.recover(TEST_MESSAGE.substring(2), signature),
+          'Failure message'
         );
       });
     });