Conversion to TypeScript adds loadScript method

[dmikey]

This is a conversion of electrode-confippet to typescript, maintaining node module support for backwards compatibility.

Adds new loadConfig method for getting the config without accessing "config" explicitly providing config options and if needed defaults.

loadConfig(composeOptions, defaults);

import { loadConfig } from "electrode-confippet";
const config = loadConfig(
    {
        dirs: [path.join(__dirname, "../config")],
        context: {
          deployment: "default"
        }
    },
    { foo: "bar" }
);