Minor changes - grammatical, stylistic

grammatical, stylistic and added tumbling window to concept of "flip time" window.

enh(sync): add SSnapshot callback: reader, writer

fix: init buffer to avoid invalid write

fix(os): reduce ctest case

fix: fix memory leak

fix(query): set correct start offset of binary data when trimming values.

enh: refactor rpc code

fix(os): add win ctest

fix(query): fix diff function bool type crash

enh: sdb snapshot

feat: parser adapts asynchronous interface

Enh/tag flt

fix(tmq): update tq for auto create table

ci: change test hosts

fix(os): add win case