add weather options

src/main/java/de/fuberlin/imp/memorybox/restmembox/model/Memory.java

@@ -27,9 +27,9 @@ public class Memory {
     private byte[] voice;
     private String voiceText;
     // enum tone
-    // enum weather
     private byte[] image;
     private String note; // optional Text
+    private Weather weather;
 
     // memstone
     private byte[] mesh;

src/main/java/de/fuberlin/imp/memorybox/restmembox/model/Weather.java

+package de.fuberlin.imp.memorybox.restmembox.model;
+
+public enum Weather {
+    RAIN, CLOUD, SNOW, STORM, THUNDER, CLEAR
+}