Adds support for custom themes. Also added support for error suppression operator.

Previously, the reasons for receiving notices, warnings, deprecations and risky events were not shown. Now they are shown immediately, with source file and line number.

Adds two new configuration options:

• test.name.strip
• test.dp.args

• Added PHPUnit 10 support (complete rewrite).
• Renamed PHPUnit Immediate Exception Printer -> PHPUnit Immediate Printer.
• Dropped PHPUnit 5/6 support.

⚠️ This release added more robust exception trace printing, but at the expense of a fatal error bug when PHPUnit would have normally just generated a notice and continued. Therefore it is not recommended to use this version and instead continue using version ^1 until version ^3 is released to fix this issue.

• Changed flawless test suite indicator from red dot to red exclamation mark (!) to make it easier to see.

• Added flawless test suite indicator (red dot).

• Added PHPUnit 6 support.