add test for one-shot encoding/decoding with offset #559

Job	Run time
Build and test cmake:gcc9	25s
Build and test cmake:clang15	31s
Build and test cmake:clang15:asan	53s
Build and test cmake:clang15:tsan	48s
Build and test cmake:clang15:ubsan	50s
Build and test cmake:qemu-arm-neon-gcc	57s
Build and test cmake-osx:clang	35s
Build and test cmake-osx:gcc	42s
Build and test cmake-win64:msvc2019-rel	45s
Build and test cmake-win64:msvc2019-dbg	1m 50s
Build and test fuzz:clang15	38s
Build and test python3.10:clang15	1m 45s
Build and test python3.10-win	52s
Build and test maven	31s
Build and test bazel:root	28s
Build and test bazel:go	21s
Build and test bazel:java	2m 58s
Build and test bazel:research	24s
Build and test bazel-osx:root	1m 39s
Build and test bazel-osx:go	1m 4s
Build and test bazel-osx:java	3m 3s
Build and test bazel-osx:research	1m 5s
Build and test bazel-win:root	1m 35s
Build and test bazel-win:java	3m 8s
Build and test bazel-win:research	53s
	28m 40s

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