Added acceleration detection for brake lights

main/globals.cpp

@@ -15,8 +15,12 @@ float gametrakDist;
 float avgSpeed{};
 float avgSpeedKmh{};
 float sumCurrent{};
+float lastAvgSpeedKmh{};
+float avgAccel{};
 bool isLocked{};
 
+espchrono::millis_clock::time_point lastAvgSpeedKmhTs{};
+
 std::optional<int> sunrise;
 std::optional<int> sunset;
 std::optional<espchrono::DateTime> sunrise_dt;