feat(types): add typescript definitions / add named export run

[ejhayes]

Changes Made

• Add typescript declarations to this project (see package.json which includes types reference and script generate:types)
• Add named export run which exports both app and queue. Simplifies process of adding/removing queues from arena. This does not change default behavior!
• Updates to README.md

Potential Risks

• Type definitions will not work if they are missing from the package (new behavior so unlikely to break anything)

Test Plan

• Ensure existing examples in example/ directory work. I have confirmed these work for me

Checklist

• [x] I've increased test coverage
• [x] Since this is a public repository, I've checked I'm not publishing private data in the code, commit comments, or this PR.

[ejhayes]

Hi @bradvogel - when you get a chance can you take a look at this PR?

[bradvogel]

Can you rebase on the latest origin/master? It looks like this PR diff is picking up some unrelated changes.

[ejhayes]

Changes rebased against upstream master. Take a look now @bradvogel