chore: infra refresh

[barak007]

As a starter for #27

This PR move all unit test to work from .ts. I fixed all the type issues* that was uncovered, like in the usage of phasor and train. I also show there a more compact way to type the elements overloaded api. In order to do so I had to export RenderDelegate_t and I have one place that I used as any.

What else in here:

• actually use npm workspace (not just lerna)
• move to single tsconfig and single devDependencies in root package.json (didn't upgraded yet)
• fix type issue with the createRef function

I tried to keep it small. please review that the flow you used to work with still works.
My IDE formatted some files...I plan to run prettier on all files anyhow but if you don't like that let me know I will make the effort to keep same formatting.

[barak007]

@nick-thompson I'm pinging because I wanted to do more work on cleanup infra. let me know what's up. I don't want to advance without any signal of approval/review.