Use "util" from KeetaNet Client package to support multiple environments (#79)

This change fixes a bug where NodeJS "util" is imported in JSON
conversion, which breaks when used within the browser. Instead use the
"util" export from the KeetaNet Client package to provide this in all
environments.

Additionally, it releases Keeta Anchor v0.0.20

Currently blocks KeetaNetwork/explorer#6

Author: rkeene

package-lock.json

@@ -1,6 +1,6 @@
 {
 	"name": "@keetanetwork/anchor",
-	"version": "0.0.19",
+	"version": "0.0.20",
 	"description": "KeetaNetwork Network Anchor",
 	"main": "client/index.js",
 	"scripts": {

package.json

@@ -1,4 +1,4 @@
-import { types as nodeUtilsTypes } from 'util';
+import { types as nodeUtilsTypes } from './util.js';
 import { Buffer } from './buffer.js';
 import type { JSONSerializable, ToJSONSerializable } from '@keetanetwork/keetanet-client/lib/utils/conversion.js';
 export type { JSONSerializable, ToJSONSerializable };

src/lib/utils/json.ts

@@ -0,0 +1,13 @@
+import { lib as KeetaNetLib } from '@keetanetwork/keetanet-client';
+
+const util: typeof KeetaNetLib.Utils.Helper.util = KeetaNetLib.Utils.Helper.util;
+
+const types: typeof util.types = util.types;
+const inspect: typeof util.inspect = util.inspect;
+
+export {
+	types,
+	inspect
+}
+
+export default util;