Support Annotation-style tags

Tags like @Route("/anonymization_preset", name="anonymization_preset_") show the part between parenthesis as part of the description. It would be more convenient to make this a first-class citizen as now this conflicts with the rule that descriptions may be parsed as Markdown documents.

See https://github.com/phpDocumentor/phpDocumentor/issues/2081 for more information

首先阅读此 issue 以及链接的 phpDocumentor issue 2081，以明确预期的 Annotation-style 标签语法，以及它应如何区别于 Markdown 描述。然后定位 ReflectionDocBlock 中标签解析和描述处理的入口点；当示例 annotation 被作为 first-class tag 处理，而不是作为描述的一部分进行解析，并且新行为得到覆盖时，即视为完成。