Implement parsing wind speed/direction

lib/xmet/rawins.py

@@ -70,6 +70,23 @@ class RawinsObs():
             'dewpoint': dewpoint
         }
 
+    def parse_wind(self, value: str):
+        base_speed = 0
+        base_dir   = 0
+
+        if value[2] == '1':
+            base_speed = 100
+        elif value[2] == '5':
+            base_dir = 5
+        elif value[2] == '6':
+            base_speed = 100
+            base_dir   = 5
+
+        return {
+            'dir':   float(value[0:3]) + base_dir,
+            'speed': float(value[4:]) + base_speed
+        }
+
     def parse_ttaa(self):
         pass