Compatibilize io with g3

- Imports with camel case
- Add missing jsdoc - go/tslintrule/jsdoc-tags
- Remove `any`
- Create compat file to easier replace in g3

Bug: 311642700
Test: npm run test:unit:ci
Flag: EXEMPT EXEMPT
Change-Id: I56a95c51db20004d9ea76583b18ac608d903ddfa
3 files changed