feat(op2): fake async, fix raw fields for WebIDL converter, add more … #3858

Job	Run time
compute-jobs	4s
build-linux / linux coverage	6m 58s
build-linux / linux test	7m 18s
build-linux / linux lint-deps	1m 48s
build-linux / linux lint	2m 12s
build-linux / linux test-miri	7m 7s
build-linux / linux test-ops	8m 18s
build-linux / linux test-publish	1m 41s
build-linux / linux test-valgrind	24m 33s
build-linux-arm / linux-arm test	12m 15s
build-linux-arm / linux-arm lint	3m 27s
build-linux-arm / linux-arm test-miri	12m 34s
build-macos / macos lint	2m 32s
build-macos / macos test	7m 49s
build-windows / windows lint	7m 11s
build-windows / windows test	15m 8s
success	1s
	2h 0m 56s

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