Inline validated-changeset

[sandstrom]

Here is an idea: inline validated-changeset back into this repo.

It's only used by one other project, react-changeset, which has basically zero usage.

https://www.npmjs.com/package/validated-changeset

https://www.npmjs.com/package/react-changeset

Benefits:

• Less confusing for new developers, easier to navigate codebase.
• Less work to maintain one repo vs. two.
• Fewer levels of indirection (the cost of abstractions and making a building block).

Just wanted to put it out there.

I understand there is some work on inlining, and @snewcomer you'll obviously have a more informed view on this (easier for you to judge pros/cons).