Update to PHP 8+

This release was all about the upgrade to PHP 8+ and cleaning up the repo. That resulted in some breaking changes, so I suggest you to read the changelog below.

Added

• Add support for PHP 8+.
• Add GitHub actions.
• Add several typehints.
• Add static analysis.

Changed

• breaking change: moved to new namespace: Vdhicts\HtmlElement.
• breaking change: renamed class to HtmlElement.
• Moved tests to a namespace: Vdhicts\HtmlElement\Tests.
• Upgrade PHPUnit to version 9.

Removed

• Removed obsolete PHPDoc.

Update namespace

Merge pull request #1 from vdhicts/feature/update-namespace

Update namespace

Cleanup

1.2.0

Changed namespace to match package and standard, also added PHP 7 req…

1.1.0

Improve attribute processing, docs and phpunit configuration

1.0.0

Initial commit