Add p18value variable to contrib

Author: neslihanturan

app/src/main/java/fr/free/nrw/commons/contributions/Contribution.java

@@ -68,6 +68,7 @@ public Contribution[] newArray(int i) {
     public String decimalCoords;
     public boolean isMultiple;
     public String wikiDataEntityId;
+    public String p18Value;
     public Uri contentProviderUri;
     public String dateCreatedSource;
 
@@ -271,6 +272,19 @@ public void setWikiDataEntityId(String wikiDataEntityId) {
         this.wikiDataEntityId = wikiDataEntityId;
     }
 
+    public String getP18Value() {
+        return p18Value;
+    }
+
+    /**
+     * When the corresponding image property of wiki entity is known as in case of nearby uploads,
+     * it can be set using the setter method
+     * @param p18Value p18 value, image property of the wikidata item
+     */
+    public void setP18Value(String p18Value) {
+        this.p18Value = p18Value;
+    }
+
     public void setContentProviderUri(Uri contentProviderUri) {
         this.contentProviderUri = contentProviderUri;
     }