* add event node implementation

* modify profiler.stop interface

* fix according to review

* fix file mode

* modify class method name in event_node.cc

* modify LLONG_MAX to ULLONG_MAX

* fix ci error

* fix ci error

* add align for WorkQueue

* add spinlock

* merge develop

* merge

* Add EventsWaiter

* Revert "Add EventsWaiter"

This reverts commit e206173aa9be7401b83a53581627bfaf557c8fb2.

* split template

* Add Profiler and HostTracer

* update

* update

* update

* updateg

* fix cmake
Co-authored-by: Nliutiexing <liutiexing@google.com>

* add align for WorkQueue

* add spinlock

* merge develop

* merge

* Add EventsWaiter

* Revert "Add EventsWaiter"

This reverts commit e206173aa9be7401b83a53581627bfaf557c8fb2.

* profiler skeleton

* update

* update

* update
Co-authored-by: Nliutiexing <liutiexing@google.com>