Migrate ui:diff-html taglib to frontend-taglib module

• Type: Technical Task
• Status: Closed
• Resolution: Won't Fix
• Affects Version/s: None
• Fix Version/s: None
• Component/s: Dynamic Data Mapping > Taglib, Portal Services, Portal Services > Component Management, Portal Services > Component Management > Portlet Taglib, UI Taglibs
• Labels: None
• Git Pull Request: https://github.com/jbalsas/liferay-portal/pull/342

Used in diff-version-comparator taglib, which is currently being migrated. Will proceed when liferay-ui:diff-version-comparator is finished being migrated.