Docs/update latest feature

* fix missed function.

* add function declaration back for random fail test.

[TD-4774]Ignore some errors in  valgrind

[TD-4737]<bug> 

[TD-4733]<test>: add test case for derivative function

[TD-4690]<test>script:check install package

* [TD-4752]<feature>: python connector support nanosecond.

* [TD-4752]<feature>: support nanosecond in test framework.

return integer for nanosecond in connector since python does not support nanosecond yet.

[td-4739]<fix>: fix bug in derivative.

* [TD-4684]<test>: add test case for nano second timestamp

* [TD-4684]<feature>: nano second timestamp precision is supported in jdbc-restful

* [TD-4684]

* change

* [TD-4745]<fix>: fix resultsetMetadata is null if query resultSet is null

* [TD-4668]<test>: test prepared statement batch insert

* [TD-4668]<fix>: fix executeBatch error in prepared statment for JNI

* change

* change

* change

* change

* change

* change

[TD-4715]bug fix:fix unreset hasRestoreLastColumn flag bug

[TD-4747]<test>grafana query multi NULL col

Td4568and4541

[TD-3776]fix:set time precision after parsing and JNI time precision chg

[TD-4394]fix core when select data after modify tag width

[TD-4366] adding more ntp. try to make sure ntp is turned on

[TD-4608] <TEST> add test case for stmt error