Add APGL license and copyright notices (#212)

* Add license & copyright declarations for add-watcher.

* Add copyright declarations for cache.

* Add copyright declarations for erc20-watcher.

* Add copyright declarations for ipld-eth-client.

* Add copyright declarations for tracing-client.

* Add copyright declarations for uni-watcher.

* Add copyright declarations for solidity-mapper.

* Add copyright declarations for uni-info-watcher.

* Add copyright declarations for util.

* Add copyright declarations for lighthouse-watcher.

* Change license identifier in .sol files.

Co-authored-by: prathamesh0 <prathamesh.musale0@gmail.com>

packages/solidity-mapper/src/index.ts

@@ -1,3 +1,7 @@
+//
+// Copyright 2021 Vulcanize, Inc.
+//
+
 export { getStorageValue, getStorageInfo, getValueByType, StorageLayout, GetStorageAt } from './storage';
 
 export { getEventNameTopics } from './logs';

packages/solidity-mapper/src/logs.test.ts

@@ -1,3 +1,7 @@
+//
+// Copyright 2021 Vulcanize, Inc.
+//
+
 import { expect } from 'chai';
 import '@nomiclabs/hardhat-ethers';
 import { artifacts } from 'hardhat';

packages/solidity-mapper/src/logs.ts

@@ -1,3 +1,7 @@
+//
+// Copyright 2021 Vulcanize, Inc.
+//
+
 import { JsonFragment } from '@ethersproject/abi';
 import { utils } from 'ethers';
 

packages/solidity-mapper/src/storage.test.ts

@@ -1,3 +1,7 @@
+//
+// Copyright 2021 Vulcanize, Inc.
+//
+
 /* eslint-disable @typescript-eslint/no-explicit-any */
 import { Contract } from '@ethersproject/contracts';
 import { expect } from 'chai';

packages/solidity-mapper/src/storage.ts

@@ -1,3 +1,7 @@
+//
+// Copyright 2021 Vulcanize, Inc.
+//
+
 import { utils, BigNumber } from 'ethers';
 
 interface Storage {