feature #10365 [Console] deprecated TableHelper in favor of Table (fabpot)

This PR was merged into the 2.5-dev branch.

Discussion
----------

[Console] deprecated TableHelper in favor of Table

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | yes
| Tests pass?   | yes
| Fixed tickets | #9788, #9680, #9325
| License       | MIT
| Doc PR        | symfony/symfony-docs#3627

This PR makes the Table helper stateless. It also adds a way to define global styles and to change/tweak existing styles easily.

The second commit adds the possibility to add a separator anywhere in the table output.

Commits
-------

21784ce [Console] make it possible to pass a style directly to Table::setStyle()
14caaec [Console] added the possibility to insert a table separator anywhere in a table output
39c495f [Console] deprecated TableHelper in favor of Table

Author: fabpot

UPGRADE-3.0.md

@@ -48,6 +48,42 @@ UPGRADE FROM 2.x to 3.0
    }
    ```
 
+ * `TableHelper` has been removed in favor of `Table`.
+
+   Before:
+
+   ```
+   $table = $app->getHelperSet()->get('table');
+   $table
+       ->setHeaders(array('ISBN', 'Title', 'Author'))
+       ->setRows(array(
+           array('99921-58-10-7', 'Divine Comedy', 'Dante Alighieri'),
+           array('9971-5-0210-0', 'A Tale of Two Cities', 'Charles Dickens'),
+           array('960-425-059-0', 'The Lord of the Rings', 'J. R. R. Tolkien'),
+           array('80-902734-1-6', 'And Then There Were None', 'Agatha Christie'),
+       ))
+   ;
+   $table->render($output);
+   ```
+
+   After:
+
+   ```
+   use Symfony\Component\Console\Helper\Table;
+
+   $table = new Table($output);
+   $table
+       ->setHeaders(array('ISBN', 'Title', 'Author'))
+       ->setRows(array(
+           array('99921-58-10-7', 'Divine Comedy', 'Dante Alighieri'),
+           array('9971-5-0210-0', 'A Tale of Two Cities', 'Charles Dickens'),
+           array('960-425-059-0', 'The Lord of the Rings', 'J. R. R. Tolkien'),
+           array('80-902734-1-6', 'And Then There Were None', 'Agatha Christie'),
+       ))
+   ;
+   $table->render();
+   ```
+
 ### EventDispatcher
 
  * The interface `Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcherInterface`

src/Symfony/Component/Console/CHANGELOG.md

@@ -4,6 +4,7 @@ CHANGELOG
 2.5.0
 -----
 
+ * deprecated TableHelper in favor of Table
  * deprecated ProgressHelper in favor of ProgressBar
  * added a way to set a default command instead of `ListCommand`
  * added a way to set the process name of a command