Refactor TCA definitions of table pages
The TCA definitions of the table pages are located in t3lib/stddb/ and typo3/sysext/cms/. Since this page has no dynamicConfigFile set, it is not possible to load information concerning the columns dynamically by t3lib_div::loadTCA().
Since the "cms" extension is mandatory for TYPO3, all definitions shall be moved to the stddb section.
The table "pages" gets a dynamicConfiFile like e.g. tbl_pages.php.
(issue imported from #M15988)