Switched up the way time stamp formatting is done. Now tracked by an

enum for easier determination. Also changed graphing window to respect
"system clock" style timestamps and display them properly.

canframemodel.h

@@ -9,6 +9,7 @@
 #include "can_structs.h"
 #include "dbc/dbchandler.h"
 #include "connections/canconnection.h"
+#include "utility.h"
 
 enum class Column {
     TimeStamp = 0, ///< The timestamp when the frame was transmitted or received
@@ -47,13 +48,11 @@ public:
     void setOverwriteMode(bool);
     void setHexMode(bool);
     void setClearMode(bool mode);
-    void setSysTimeMode(bool);
-    void setMillisMode(bool mode);
+    void setTimeStyle(TimeStyle newStyle);
     void setIgnoreDBCColors(bool mode);
     void setFilterState(unsigned int ID, bool state);
     void setBusFilterState(unsigned int BusID, bool state);
     void setAllFilters(bool state);
-    void setSecondsMode(bool);
     void setTimeFormat(QString);
     void setBytesPerLine(int bpl);
     void loadFilterFile(QString filename);
@@ -93,9 +92,8 @@ private:
     bool overwriteDups; //should we display all frames or only the newest for each ID?
     bool filtersPersistDuringClear;
     QString timeFormat;
+    TimeStyle timeStyle;
     bool useHexMode;
-    bool timeSeconds;
-    bool useSystemTime;
     bool needFilterRefresh;
     bool ignoreDBCColors;
     int64_t timeOffset;