enh: row iter and fetch optimization

doc: change 3.0 doc

refactor(sync): add leader, follower call back2

fix: return init agg failure when create operators to avoid coredump

* chore: add libtaos-ws for 3.0

* chore: update taosws-rs

* chore: add libtaosws to install/remove script

* chore: update taosws-rs

* chore: update taosws-rs

* chore: update taos-tools, taosws-rs

for 3.0

* fix: packaging/tools/make_install.sh

for 3.0

* chore: update taos-tools

* chore: fix release script for 3.0

* chore: update taosws-rs for 3.0

* chore: add taows-rs submodule for 3.0

* chore: update taosws-rs for 3.0

* fix: install script support taosws for 3.0

* fix: script error handle for 3.0

* chore: update taosws-rs for 3.0

fix segfault

* chore: change container_build for websocket build

* fix: install script for taosws

* fix: .

* chore: update taosws-rs for 3.0

* chore: update taosws-rs for 3.0

* chore: update tools/CMakeLists.txt to allow compile taosws-rw on any platform

* chore: taosws 648cc62 for 3.0

* chore: update taosws 29424d5 for 3.0

* chore: update cmake/taosws_CMakeLists.txt.in with new repo/commit

* chore: update taosa 3d21433 and rust connector for new raw block

enh(tmq): enable background heartbeat by default

* add a few stmt_ interface declartion

* add taos_load_table_info

* add taos_set_config(() interface

* add more interfaces

* warn 'reset query cache' only since lack engine support

* update taos-tools

* feat: remove temporary interface declaration

* fix: remove temporary interfaces

fix(stream): check udf

enh(tmq): prevent drop db when topic exists

refactor(sync): add leader, follower call back

enh(tmq): speed up consumer recover

ehn(query): optimize the query performance.

fix: use the pre agg value as double when generate block sma for float column and double column

enh: refactor index

fix(query): fix interp + fill interpolation after last datablock