fix(android): handle REAL datatype correctly

Close #31

Author: craftzdog

android/src/main/java/dog/craftz/sqlite_2/RNSqlite2Module.java

@@ -177,7 +177,7 @@ private SQLitePLuginResult doSelectInBackgroundAndPossiblyThrow(String sql, Stri
   private Object getValueFromCursor(Cursor cursor, int index, int columnType) {
     switch (columnType) {
       case Cursor.FIELD_TYPE_FLOAT:
-        return cursor.getFloat(index);
+        return cursor.getDouble(index);
       case Cursor.FIELD_TYPE_INTEGER:
         return cursor.getInt(index);
       case Cursor.FIELD_TYPE_BLOB: