OmniOperator: Spark ORC Unknown Type Error

[XiaoqiMa]

Issue: Orc Type Error

ORC: TypeKind::Short -> SmallInt -> Omni:Int

OrcColumnarBatchJniReader.cpp, OrcColumnarBgatchJniReader.java needs support for Short type

1. create table and insert data
   create table if not exists test_smallint(id smallint);
   insert into test_smallint select 1;
2. running sql:
   select * from test_smallint;