feat: sql command 'alter table'

test: query_cols_tags_and_or.py optimization and add to ci

refactor(query): do some internal refactor.

Test3.0/lihui

fix: memory leak in schemaless

* enh: cmake git submodule

[TD-15342]

* fix: remove git submodule in cmake for 3.0

fix(sync): set handle when send response

feat: alter table

fix(sync): set handle when send response

fix(query): return error code when connecting to database failed.

enh(sync): raft config change