Method GetTimestampRange

ETLTrimmer/main.cpp:273–276

        return eventCount_;
    }
    std::pair<uint64_t, uint64_t> GetTimestampRange() const
    {
        return { firstTimestamp_.value_or(0), lastTimestamp_};
    }
    void SetTrimRangeQpc(std::pair<uint64_t, uint64_t> range)
    {
        trimRangeQpc_ = range;