Add esm support to shared package

[TrySound]

Enabled tslib to prevent emitting helpers with top level this which
does not exist in es modules. For some reason tslib has different and
correct helpers.

Commonjs artifacts are moved into cjs folder. Added esm folder near it.
package.json routes are created for each module via cherry-pick package.

[TrySound]

Have no idea why tests failed.

[aleclarson]

Thanks!

cherry-pick is a neat little tool 😮

[aleclarson]

I noticed a ./dist/createInterpolator.test/ directory is created. Not a big deal, but I wonder if there's a way to avoid that.

[TrySound]

Maybe we can add the feature to cherry-pick. Do you mind to release current changes? We have to alias local copy of "shared" package to build spring with rollup.

[aleclarson]

Nested directories aren't supported by cherry-pick either. Andarist/cherry-pick#8

So the src/types directory isn't being copied.

edit: Well, dist/esm/types and dist/cjs/types do exist, but not the dist/types package. But that's okay, I can work around that by moving src/types/index.ts to src/types.ts and then avoid importing from shared/types/example.

[TrySound]

Types could be imported from index.ts with import type {} syntax to prevent bundle bloating.

[aleclarson]

Do you mind to release current changes?

#985