Racelogic / Mbed 2 deprecated VIPS_LTC_RAW_IMU

I messed up the merge, so pushing it over to another repo so I don't lose it. Will tidy up and remove later

Dependencies:   BufferedSerial FatFileSystemCpp mbed

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VIPSSerialProtocol.h/shortlog@7ecf25d9c414: not found in manifest