Make ReceiveMessage() return the most recent matching message #22
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Without this PR,
ReceiveMessage()is only guaranteed to return the most recent matching CAN frame if the mask is all 1s (0x1FFFFFFF). Otherwise, it will pick the most recent frame for whichever of the fully-matching arbitration IDs it happens to iterate to first.This PR is needed to make https://github.com/REVrobotics/Desktop-Factory-Tester/pull/45 work correctly under all circumstances.