Classify unknown HVT route types based on the corresponding value ran… #559

Job	Run time
formatting	49s
msvc (Debug)	3m 7s
macos (macos-x86_64, On)	11m 58s
msvc (Release)	2m 59s
linux (linux-amd64-release, linux-amd64)	16s
macos (macos-arm64)	15m 29s
linux (linux-x86-release, linux-x86)	15s
linux (linux-arm-release, linux-arm, qemu-arm-static)	18s
linux (linux-arm64-release, linux-arm64, qemu-aarch64-static)	18s
linux (clang-tidy)	34s
linux (linux-sanitizer)	26s
linux (linux-debug, valgrind --leak-check=full --error-exitcode=1)	56s
	37m 25s

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