Add Portuguese, Brazil translation. Translate was produced at the...

Add Portuguese, Brazil translation. Translate was produced at the localize.drupal.org and generated by it's export tool, using the following parameters:

Project:
- Content Construction Kit (CCK)
Release:
- 6.x-2.6 only

Type:
- Include both English originals and translations
Packaging:
- All in one file
Verbosity:
- Compact files optimized for size, not desktop editing