Speed limit controller

Added toggle to control the cruise set speed according to speed limit supplied by OSM, NOO, or the vehicle itself.

Co-Authored-By: Jacob Pfeifer <jacob@pfeifer.dev>
Co-Authored-By: Efini <19368997+efini@users.noreply.github.com>
Co-Authored-By: Kumar <36933347+rav4kumar@users.noreply.github.com>
Co-Authored-By: Jason Wen <haibin.wen3@gmail.com>

selfdrive/ui/qt/onroad.h

@@ -158,6 +158,7 @@ private:
   void updateFrogPilotWidgets(QPainter &p);
 
   void drawLeadInfo(QPainter &p);
+  void drawSLCConfirmation(QPainter &p);
   void drawStatusBar(QPainter &p);
   void drawTurnSignals(QPainter &p);
 
@@ -183,15 +184,22 @@ private:
   bool leadInfo;
   bool mapOpen;
   bool pedalsOnUI;
+  bool rightHandDrive;
   bool roadNameUI;
   bool showDriverCamera;
+  bool showSLCOffset;
+  bool slcOverridden;
+  bool speedLimitController;
   bool turnSignalLeft;
   bool turnSignalRight;
+  bool useViennaSLCSign;
 
   float cruiseAdjustment;
   float distanceConversion;
   float laneWidthLeft;
   float laneWidthRight;
+  float slcSpeedLimit;
+  float slcSpeedLimitOffset;
   float speedConversion;
 
   int availableImages;