feat: add sncrypto client side packages

packages/sncrypto-web/src/index.ts

@@ -0,0 +1,16 @@
+export { SNWebCrypto } from './crypto'
+export {
+  arrayBufferToBase64,
+  arrayBufferToHexString,
+  arrayBufferToString,
+  base64Decode,
+  base64Encode,
+  base64ToArrayBuffer,
+  base64ToHex,
+  hexStringToArrayBuffer,
+  hexToBase64,
+  isWebCryptoAvailable,
+  stringToArrayBuffer,
+  base32Decode,
+  base32Encode,
+} from './utils'