Convert Typescript build output to ES6 Modules

[jmrossy]

Description

The build settings for the monorepo JS packages don't support tree-shaking, which how bundlers drop code apps don't use. Meaning every consumer of the utils/core/sdk packages will bundle every lib we use, every contract factory, and all our code into their app, even if they don't use parts of it. Currently our bundle contribution is 1.5Mb plus all our transitive lib deps. Not horrible, but problematic as we start adding libs for more protocols. To fix this we'd need to change our TS and package.json settings to produce more modern build output.

Requirements

• Builds output both commonJS and ES6 module output
• Package.json files are updated to properly reference the different types
• The output libs work with most popular bundlers/frameworks including webpack 5, rollup, next.js, esbuild, etc.
• Test projects are created to ensure the libs work and don't regress

[jmrossy]

Closing as dupe of #1354