* fix(query): fix timediff args cannot be integer values

TD-14798

* fix(query): fix timediff/timetruncate/to_unixtimestamp handling NULL value and empty string

TD-14802
TD-14803

* refactor(query): constant NULL value processing logic

TD-14802
TD-14803

* refactor(query): support timefunction arithmetic operation with boolean
constant

* [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

* support arm platform

* port more OS files

* fix for Windows compile

* port more files

* fix macOS on x86_64

* port osFile

* port osSemaphone.h

* port osSocket.c

* port tconfig.c

* port ttimer.c

* add couple files