Provide a mechanism to permit database prefixes for external components

I use Testing with CiviCRM and Views. But, during the execution I receive an database error because the table simpletest00000civicrm_contact doesn't exists.

It's normal, because the civicrm_contact table is in the external module CiviCRM that was not installed during the Testing SetUp.

Here's a list of patches that add two functionnalities

1- Update the Drupal Core and Testing Core to add the possibility to have some prefixes during the Testing execution (these prefixes aren't used during a normal execution, just used during Testing execution).

2- Update the Drupal Core to add the possibility to have the "*" wildcard for database prefix. Because, in my case I have 140+ civicrm tables. And, also, some tables are created by the CiviCRM api during the execution with a name not known at the SetUp phase.

NOTE : Example database setting in settings.php

$databases = array (
  'default' =>
  array (
    'default' =>
    array (
      'database' => 'aDatabaseName',
      'username' => 'aUserName',
      'password' => 'aPassWord',
      'host' => 'localhost',
      'port' => '',
      'driver' => 'mysql',
      'prefix' => array(
        'default' => '',
        'simpletest.prefixes' => array(
          'civicrm*' => '',
        ),
      ),
    ),
  ),
);

I will appreciate your comments :)

Thanks