Improved time formatting and added new gps fix time

boatdata.py

@@ -43,6 +43,7 @@ RPOS - Rudder Position, Auslenkung Hauptruder
 SOG - Speed Over Ground, Geschwindigkeit über Grund
 STW - Speed Through Water, Geschwindigkeit durch das Wasser
 SatInfo - Satellit Info, Anzahl der sichtbaren Satelliten
+TSPOS - Timestamp des Position-Fixes (sie z.B. 0183/GLL)
 TWD - True Wind Direction, wahre Windrichtung
 TWS - True Wind Speed, wahre Windgeschwindigkeit
 TXT - Textnachricht / Alarm
@@ -211,13 +212,19 @@ class BoatValueDate(BoatValue):
         return formatted
 
 class BoatValueTime(BoatValue):
-    # timefmt = hh:mm | hh:mm:ss
+    # TODO Formatting!
     def __init__(self, shortname, timezone='UTC'):
         super().__init__(shortname)
         self.tz = timezone
-        self.timefmt = 'hh:mm:' # TODO hh:mm:ss | ...?
+        self.timefmt = 'hh:mm' # TODO hh:mm | hh:mm:ss | hh:mm:ss.000 | ... ?
     def format(self):
-        formatted = self.value
+        if self.timefmt == 'hh:mm':
+            formatted = self.value.strftime("%H:%M")
+        elif self.timefmt == 'hh:mm:ss':
+            formatted = self.value.strftime("%H:%M:%S")
+        else:
+            # unbekanntes Format
+            formatted = self.value.strftime("%H%M%S")
         return formatted
 
 class BoatValueSpeed(BoatValue):
@@ -445,6 +452,7 @@ class BoatData():
         self.lon = BoatValueGeo("LON", "lon", "deg")
         self.gpsd = BoatValueDate("GPSD", "ISO")
         self.gpst = BoatValueTime("GPST")
+        self.tspos = BoatValueTime("TSPOS")
         self.sog = BoatValueSpeed("SOG", "kn")
         self.cog = BoatValueAngle("COG", "deg")
         self.hdm = BoatValueAngle("HDM", "deg")
@@ -534,6 +542,7 @@ class BoatData():
             'ROT': self.rot,
             'SOG': self.sog,
             'STW': self.stw,
+            'TSPOS': self.tspos,
             'TWD': self.twd,
             'TWS': self.tws,
             'TXT': self.txt,