Create new taglib for customizable jsps

• Type: Story
• Status: Closed
• Priority: Trivial
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: Master
• Component/s: Frontend Infrastructure, Tag Libraries > Liferay UI Taglibs
• Labels: None
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/59415

Create a new taglib to mark customizable sections of jsps. By default these sections will simply render as written, but customers can create extensions to customize what is rendered.