Add todo item.
Add one common lib.
Add get numeric thread id function.
Fix log level.
Add thread safe check when initializing the log instance.
Add threadId cache.
Move bootstrap to a new package.
Move Timer into event/app.
Add Vector class & add lock into Vector & Map.
Separate Event into several single classes.
Move thread callback into Common.h
Move model classes into Common.h
Separate ThreadUtil into a single file, and add ThreadPool class.
Move model classes into Common.h
Separate Bootstrap classes into several single files.
Fix wrong type size.
Thread pool init version done.
Add worker thread.
Add Queue class.
Add container empty check.