Optimize tidb-core module API

[humengyu2012]

What is the purpose of the change

Reduce the number of RPC getTable calls.

Brief change log

1. add a new field named titableinfo in io.tidb.bigdata.tidb.handle.TableHandleInternal to storead titableinfo, instead of querying it every time.
2. Add builder for io.tidb.bigdata.tidb.RecordSetInternal;
3. Move getSplit() method to ClientSession, we needn't SplitManager in flink/hive/mapreduce;
4. Reduce the number of RPC getTable calls;
5. Change a lot of methods parameters (String databaseName,String tableName) to (String databaseName,TiTableInfo tableInfo) in ClientSession.

Verifying this change

This change is already covered by existing tests

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): no
• The public API: no
• The runtime per-record code paths (performance sensitive): yes

Documentation

• Does this pull request introduce a new feature? no

[humengyu2012]

/run-all-tests

[humengyu2012]

/run-all-tests

[humengyu2012]

/run-all-tests

[humengyu2012]

/run-all-tests

[shiyuhang0]

flink part LGTM