[SPARK-19235][SQL][TESTS] Enable Test Cases in DDLSuite with Hive Met…

…astore

### What changes were proposed in this pull request?
So far, the test cases in DDLSuites only verify the behaviors of InMemoryCatalog. That means, they do not cover the scenarios using HiveExternalCatalog. Thus, we need to improve the existing test suite to run these cases using Hive metastore.

When porting these test cases, a bug of `SET LOCATION` is found. `path` is not set when the location is changed.

After this PR, a few changes are made, as summarized below,
- `DDLSuite` becomes an abstract class. Both `InMemoryCatalogedDDLSuite` and `HiveCatalogedDDLSuite` extend it. `InMemoryCatalogedDDLSuite` is using `InMemoryCatalog`. `HiveCatalogedDDLSuite` is using `HiveExternalCatalog`.
- `InMemoryCatalogedDDLSuite` contains all the existing test cases in `DDLSuite`.
- `HiveCatalogedDDLSuite` contains a subset of `DDLSuite`. The following test cases are excluded:

1. The following test cases only make sense for `InMemoryCatalog`:
```
  test("desc table for parquet data source table using in-memory catalog")
  test("create a managed Hive source table") {
  test("create an external Hive source table")
  test("Create Hive Table As Select")
```

2. The following test cases are unable to be ported because we are unable to alter table provider when using Hive metastore. In the future PRs we need to improve the test cases so that altering table provider is not needed:
```
  test("alter table: set location (datasource table)")
  test("alter table: set properties (datasource table)")
  test("alter table: unset properties (datasource table)")
  test("alter table: set serde (datasource table)")
  test("alter table: set serde partition (datasource table)")
  test("alter table: change column (datasource table)")
  test("alter table: add partition (datasource table)")
  test("alter table: drop partition (datasource table)")
  test("alter table: rename partition (datasource table)")
  test("drop table - data source table")
```

**TODO** : in the future PRs, we need to remove `HiveDDLSuite` and move the test cases to either `DDLSuite`,  `InMemoryCatalogedDDLSuite` or `HiveCatalogedDDLSuite`.

### How was this patch tested?
N/A

Author: Xiao Li <gatorsmile@gmail.com>
Author: gatorsmile <gatorsmile@gmail.com>

Closes #16592 from gatorsmile/refactorDDLSuite.