Promise A+完整实现

同时实现了处于TC39 第四阶段草案（Stage 4）阶段的any和allSettled方法; 本仓库通过了PromiseA+官方的872个测试用例，仅用于学习。

构建

  npm run build

  npm run test

Name		Name	Last commit message	Last commit date
Latest commit History 9 Commits
dist		dist
src		src
.gitignore		.gitignore
README.md		README.md
package-lock.json		package-lock.json
package.json		package.json
rollup.config.js		rollup.config.js