refactor(channels): sepreate bytes and file channel

tools/writer/device_writer.cc

@@ -232,7 +232,9 @@ void DeviceWriter::SaveAllInfos(const std::string &dir) {
   auto &&m_in = device_->GetMotionIntrinsics();
   SaveImuParams(
       {
-          false, m_in.accel, m_in.gyro,
+          false,
+          device_->GetInfo()->spec_version.to_string(),
+          m_in.accel, m_in.gyro,
           device_->GetMotionExtrinsics(Stream::LEFT),
       },
       dir + MYNTEYE_OS_SEP "imu.params");

tools/writer/device_writer.h

@@ -20,7 +20,7 @@
 #include <string>
 
 #include "mynteye/mynteye.h"
-#include "mynteye/device/channels/channels.h"
+#include "mynteye/device/channel/channels.h"
 #include "mynteye/device/types.h"
 
 MYNTEYE_BEGIN_NAMESPACE