Update Dependencies, Build System

[geoffdavis92]

Overview

• Latest node version(s) should be supported
• Jest, Enzyme and related testing packages should be updated
• Rollup should be replaced with Webpack, with distributed files updated accordingly
• A types.d.ts file should be created and added to the files array
• Third-party configuration properties in package.json should be transitioned to their respective config files

Checklist

• [x] Supports node v ^14
• [ ] Jest updated to v ^26
• [ ] Enzyme updated to v ^3
• [ ] Add webpack support build file
• [ ] Create types.d.ts
• [ ] Create config file for Babel settings
• [ ] Create config file for Jest settings
• [ ] Create config file for Prettier settings