feat(core): add `if_not_exist` in `OpWrite` #2007

Job	Run time
build_all_features	1m 40s
build_default_features (ubuntu-latest)	34s
check_docs	1m 39s
check_clippy	1m 39s
build_default_features (macos-latest)	1m 2s
build_default_features (windows-latest)	1m 16s
check_msrv	31s
build_all_platforms (ubuntu-latest)	1m 38s
build_all_platforms (macos-latest)	1m 41s
build_all_platforms (windows-latest)	1m 33s
build_under_wasm	46s
unit	1m 38s
	15m 37s

Provide feedback