InitDB: add missing objectStores

InitDB now automatically adds the missing objectstore instead of rejecting

standard_Operations.html

@@ -8401,8 +8401,12 @@ Bitcoin.Util = {
                         .stringify(Object.keys(
                             objectStores).sort()))
                         resolve("Initiated IndexedDB");
-                    else
+                    else {
-                        reject("IndexedDB already exist with different ObjectStores!");
+                        Object.values(db.objectStoreNames).forEach(obs => delete objectStores[obs])
+                        this.initDB(dbName, objectStores, db.version + 1)
+                            .then(result => resolve(result))
+                            .catch(error => reject(error))
+                    }
                     db.close();
                 }
             });