message: updating SDK "main" to point to index.ts
diff: "description": "An SDK for using the cardpay protocol",
  "version": "0.27.42",
  "author": "Hassan Abdel-Rahman @habdelra",
  - "main": "./index.js",
  + "main": "./index.ts",
  "dependencies": {
  "@truffle/hdwallet-provider": "^1.5.0",
  "@trufflesuite/web3-provider-engine": "^15.0.13-1",
  