Add compensated IMU message [AP-1475] #1564

Job	Run time
Bazel	6m 47s
Test Big Endian	9m 18s
macOS	24m 25s
Ubuntu 18.04 (Build: Debug, Compilers: gcc-6/g++-6, Shared Library: true)	10m 8s
Ubuntu 18.04 (Build: Debug, Compilers: clang-6.0/clang++-6.0, Shared Library: true)	9m 17s
Ubuntu 18.04 (Build: Debug, Compilers: clang-6.0/clang++-6.0, Shared Library: false)	9m 27s
Ubuntu 18.04 (Build: Release, Compilers: gcc-6/g++-6, Shared Library: true)	14m 42s
Ubuntu 18.04 (Build: Release, Compilers: gcc-6/g++-6, Shared Library: false)	15m 11s
Ubuntu 18.04 (Build: Release, Compilers: clang-6.0/clang++-6.0, Shared Library: true)	14m 34s
Ubuntu 18.04 (Build: Release, Compilers: clang-6.0/clang++-6.0, Shared Library: false)	14m 17s
ASAN	7m 40s
UBSAN	7m 59s
Windows 2019 (Generator: MinGW Makefiles, Shared Library: true)	19m 2s
Windows 2019 (Generator: MinGW Makefiles, Shared Library: false)	20m 17s
Windows 2019 (Generator: Visual Studio 16 2019, Shared Library: true)	9m 23s
Windows 2019 (Generator: Visual Studio 16 2019, Shared Library: false)	9m 34s
	3h 22m 1s

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