[Picklereader] add asDict export of Dataframe

fixtracks/utils/reader.py

@@ -78,6 +78,12 @@ class PickleLoader(QRunnable):
     def data(self):
         return self._data
 
+    @property
+    def asdict(self):
+        d = {c: self._data[c].values for c in self._data.columns}
+        d["index"] = self._data.index.values
+        return d
+
 class DataFrameReader(QRunnable):
     finished = Signal(bool)