`LazySeq` have gone away from core annotations
Annotate `equal?`
Remove a needless `ann`
Use `Seqable` over `Coll`
Cleanups
Fix comments
Annotate `install-rectangular-package` and `install-polar-package`
Add `eps-2`
Implement `apply-generic` related functions in a separate namespace without `core.typed`
Up to 2.86
Update `core.typed` from 0.2.19 to 0.2.66
BUG: `Type Error (sicp/core.clj:2296:1) Internal Error (sicp/core.clj:2296:1) Updating local not in scope: ret__#0`
Remove some duplications with `ch-2-4`