Move www/typo3 to www/typo3-8 and update to 8.7.0

• Update pkg-descr

Changes: https://typo3.org/download/release-notes/whats-new/

		https://wiki.typo3.org/TYPO3_CMS_8.7.0

PR: 218455
Submitted by: Helmut Ritter <freebsd-ports@charlieroot.de> (maintainer)