add test for one-shot encoding/decoding with offset #561

Job	Run time
Build and test cmake:gcc9	26s
Build and test cmake:clang15	38s
Build and test cmake:clang15:asan	46s
Build and test cmake:clang15:tsan	1m 38s
Build and test cmake:clang15:ubsan	2m 6s
Build and test cmake:qemu-arm-neon-gcc	1m 19s
Build and test cmake-osx:clang	35s
Build and test cmake-osx:gcc	52s
Build and test cmake-win64:msvc2019-rel	1m 3s
Build and test cmake-win64:msvc2019-dbg	49s
Build and test fuzz:clang15	31s
Build and test python3.10:clang15	1m 40s
Build and test python3.10-win	45s
Build and test maven	33s
Build and test bazel:root	55s
Build and test bazel:go	28s
Build and test bazel:java	3m 11s
Build and test bazel:research	38s
Build and test bazel-osx:root	1m 23s
Build and test bazel-osx:go	1m 13s
Build and test bazel-osx:java	3m 10s
Build and test bazel-osx:research	1m 34s
Build and test bazel-win:root	1m 31s
Build and test bazel-win:java	3m 3s
Build and test bazel-win:research	1m 29s
	32m 16s

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