export for deno

[jkowalleck]

we ship our source typescript, and the comiled javascript along with typehints.

lets also make this package work with deno's native typescxript support

example package.json

{
  "name": "my-hybrid-package",
  "version": "1.0.0",
  "type": "module",
  "main": "./dist/index.js",
  "types": "./dist/index.d.ts",
  "exports": {
    ".": {
      "deno": "./src/index.ts",
      "types": "./dist/index.d.ts",
      "import": "./dist/index.js",
      "require": "./dist/index.cjs"
    }
  }
}