List formatting refactor and places/place feature

[myst729]

1. Enable compiling array-like object with list tokens.
2. Implement places/place prop feature.
3. Add test cases to cover the changes.
4. Add docs.

Item 2 depends on item 1, combined in one PR but separate commits.
Commits were rebased so they comes after the codecov report.

[codecov-io]

Codecov Report

Merging #218 into dev will increase coverage by 0.02%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##              dev     #218      +/-   ##
==========================================
+ Coverage   96.89%   96.92%   +0.02%     
==========================================
  Files           8        8              
  Lines         547      552       +5     
==========================================
+ Hits          530      535       +5     
  Misses         17       17

Impacted Files	Coverage Δ
src/index.js	99.56% <100%> (-0.02%)	⬇️
src/format.js	100% <100%> (ø)	⬆️
src/component.js	100% <100%> (ø)	⬆️

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[myst729]

Oops, I guess it's done now.

[kazupon]

Thank you for your PR!
Perfect! 💯
Thanks!

[myst729]

This PR should also close #213 and #214 ㊗️