* [TD-7790]<fix>: taosdump stb dump memory leak.

* merge from develop branch.

* fix buffer overflow issue.

* [TD-6280]<fix>: taosdump -P determine input.

* fix mistake range.

* [TD-10416]<fix>: taosdump if no any arguments given.

* cherry pick from develop branch.

* cherry pick from develop branch.

* cherry pick 54813175

* [TD-5872]<fix>: taosdemo stmt csv perf improve.

* rand func back to early impl.

* fix windows/mac compile error.

* cherry pick from develop branch.

* merge with develop branch.

* rename MAX_SAMPLES_ONCE_FROM_FILE to reflect reality.

* split func for stmt interlace.

* fix bug that get build path.

* stmt batch interlace works.

* fix start time issue.

* few cleanup.

* fix nchar random length.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

Co-authored-by: tomchon <haoran920c@163.com>

* cherry pick from develop branch.

* cherry pick 54813175

* [TD-5872]<fix>: taosdemo stmt csv perf improve.

* rand func back to early impl.

* fix windows/mac compile error.

* cherry pick from develop branch.

* merge with develop branch.

* rename MAX_SAMPLES_ONCE_FROM_FILE to reflect reality.

* split func for stmt interlace.

* fix bug that get build path.

* stmt batch interlace works.

* fix start time issue.

* few cleanup.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

* [TD-3197]<fix>: taosdemo and taosdump coverity scan issues.

* exit if read sample file failed.

* fix converity scan issue.

* fix coverity scan issue.

* fix coverity scan memory leak.

* fix resource leak reported by coverity scan.

* fix taosdemo coverity scan issue.

* fix tcsetattr and getchar return value determination bug.

* fix coverity scan issue.

* fix two more coverity scan issues.

* fix stmt batch coverity scan issue.

* change to portable format.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

* [TD-6479]<fix>: taosdump cmdline align for database sequence.

adopt 'taosdump -D db1,db2,...' format.

* fix core dump issue.

* cherry pick from develop branch.

* [TD-5136]<feature>: taosdemo simulate real senario.

* update test case according to taosdemo change

* adjust range of semi-random data.

* make demo mode use different tag name and value.

* change malloc to calloc for pid allocation.

* fix typo.

* fix binary length default value and group id logic.

* fix help msg.

* fix aggregation func test.

* minor typo fix.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>