more formatters for UI

lib/boatData/GwBoatData.cpp

@@ -27,3 +27,56 @@ String GwBoatData::toJson() const {
     serializeJson(json,buf);
     return buf;
 }
+
+double formatCourse(double cv)
+{
+    double rt = cv * 180.0 / M_PI;
+    if (rt > 360)
+        rt -= 360;
+    if (rt < 0)
+        rt += 360;
+    return rt;
+}
+double formatDegToRad(double deg){
+    return deg/180.0 * M_PI;
+}
+double formatWind(double cv)
+{
+    double rt = formatCourse(cv);
+    if (rt > 180)
+        rt = 180 - rt;
+    return rt;
+}
+double formatKnots(double cv)
+{
+    return cv * 3600.0 / 1852.0;
+}
+
+uint32_t mtr2nm(uint32_t m)
+{
+    return m / 1852;
+}
+double mtr2nm(double m)
+{
+    return m / 1852;
+}
+
+double kelvinToC(double v)
+{
+    return v - 273.15;
+}
+double formatLatitude(double v){
+    return v;
+}
+double formatLongitude(double v){
+    return v;
+}
+double formatFixed0(double v){
+    return v;
+}
+double formatDepth(double v){
+    return v;
+}
+uint32_t formatFixed0(uint32_t v){
+    return v;
+}