* Handle get schema 404 in pulsar sql(table meta and get splits)

* Fix unit test.

* add defaultSchema()

* use Schema.BYTES.getSchemaInfo()

* add unit test

* rebase and fix unit tests

Fixes #4785

### Motivation

1. Stop return partition name in table list, just return the partitioned topic name in table list. This will avoid huge tables while user create large number of partition.
2. Make partition as internal column, provide users with the ability to get which partition data in and filtration based on partition. For example: 
```
SELECT * FROM "my-table" WHERE "__partition__" = 0;
SELECT * FROM "my-table" WHERE "__partition__" in (2,3);
SELECT * FROM "my-table" WHERE "__partition__" < 1;
```
### Modifications

1. Add "__partition__" internal column.
2. Add domain handle for "__partition__".

### Verifying this change

Added new unit test to verify this change

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

*If `yes` was chosen, please highlight the changes*

  - Dependencies (does it add or upgrade a dependency): (no)
  - The public API: (yes)
  - The schema: (no)
  - The default values of configurations: (no)
  - The wire protocol: ( no)
  - The rest endpoints: (no)
  - The admin cli options: (no)
  - Anything that affects deployment: (no)

### Documentation

  - Does this pull request introduce a new feature? (yes)

### Motivation
Continue the PR of #4151

### Motivation

Fix #4732 

### Modifications

Add options to rewrite the namespace delimiter, disable by default

Enable rewrite namespace delimiter can work well with superset:
<img width="1279" alt="superset" src="https://user-images.githubusercontent.com/12592133/61385412-f0f35700-a8e4-11e9-87b2-a31b62128b58.png">


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

*If `yes` was chosen, please highlight the changes*

  - Dependencies (does it add or upgrade a dependency): (no)
  - The public API: (no)
  - The schema: (no)
  - The default values of configurations: (no)
  - The wire protocol: (no)
  - The rest endpoints: (no)
  - The admin cli options: (no)
  - Anything that affects deployment: (no)

### Documentation

  - Does this pull request introduce a new feature? (no)

Upgrading to Mockito 2.28 and PowerMock 2.0. This a pre-step to be able to run CI with Java 11 / 12

* Add static import statements for Assert to simplify the test in the presto module

* Use the preferred way of the schema's creation. The predicates and functions were converted to lambda

* Adding offloader support for sql

* cleaning up

* cleaning up imports

* cleaning up configs

* fix imports

* fix behavior when offloader not configured and fix license

* fix unit test

* Get information_schema for pulsar connector to work

* fix unit test

* support nested fields in Pulsar presto connector

* cleaning up

* removing debug messages

* adding module for Pulsar SQL

* renaming presto pulsar package

* fixing pom and configs

* fixing pom

* using project version variable in pom

* adding comments