Added migration script to store jetpack_user_email to SiteModel

Author: anitaa1990

fluxc/src/main/java/org/wordpress/android/fluxc/persistence/WellSqlConfig.java

@@ -44,7 +44,7 @@ public WellSqlConfig(Context context, @AddOn String... addOns) {
 
     @Override
     public int getDbVersion() {
-        return 88;
+        return 89;
     }
 
     @Override
@@ -618,6 +618,10 @@ public void onUpgrade(SQLiteDatabase db, WellTableManager helper, int oldVersion
                 AppLog.d(T.DB, "Migrating to version " + (oldVersion + 1));
                 migrateAddOn(ADDON_WOOCOMMERCE, db, oldVersion);
                 oldVersion++;
+            case 88:
+                AppLog.d(T.DB, "Migrating to version " + (oldVersion + 1));
+                db.execSQL("alter table SiteModel add JETPACK_USER_EMAIL text;");
+                oldVersion++;
         }
         db.setTransactionSuccessful();
         db.endTransaction();