Important: #95261 - New public methods in SectionMarkupGenerated events

See forge#95261


With forge#88921, two new events had been introduced. Those can be used to add additional content to the columns in the page layout module. Due to the different approach and the different code base of the new Fluid-based page module, transforming the backend to always use the new approach in TYPO3 v11 also required to extend those events for two new public methods.

The new getPageLayoutContext() should be used as a direct replacement for the deprecated getPageLayoutView() method, as it contains nearly the same information, except for the records of the current column. This information can from now on be retrieved using the new getRecords() method.