fix:core dump in top/bottom with group by tag if tag is big size and flush/get from disk with page buffer & fix _group_by key function heap overflow

refactor: do some internal refactor, and set the correct intermediate buffer size for average function.

* [TD-13063]<feature>: 3.0 on Windows

* add pthread in contrib

* fix linux compile

* fix osSemaphore

* add gnu regex for Windows

* fix compile error for Windows