revert Default_Timestamp_Pattern

Author: danielfeismann

src/main/java/edu/ie3/datamodel/io/source/couchbase/CouchbaseWeatherSource.java

@@ -35,6 +35,7 @@
 public class CouchbaseWeatherSource extends WeatherSource {
   private static final Logger logger = LoggerFactory.getLogger(CouchbaseWeatherSource.class);
   /** The start of the document key, comparable to a table name in relational databases */
+  private static final String DEFAULT_TIMESTAMP_PATTERN = "yyyy-MM-dd'T'HH:mm:ssxxx";
   private static final String DEFAULT_KEY_PREFIX = "weather";
 
   private final String keyPrefix;