MFH: r522436

databases/mysql80-{client, server}: Update to latest release 8.0.18

switch patch-files to mysql80-server to make it easy for maintain.

Bugfix:

• CMake now enables use of fastcov if it is available. fastcov is faster than lcov or gcov. This requires GCC and gcov versions of 9 or higher.
• The DISABLE_SHARED CMake option was unused and has been removed.
• The CMake code to find Protobuf executables now works on platforms that split these into multiple packages.
• The new ADD_GDB_INDEX CMake option determines whether to enable generation of a .gdb_index section in binaries, which makes loading them in a debugger faster. The option is disabled by default. It has no effect if a linker other than lld or GNU gold is used.
• For the INSTALL_LAYOUT CMake option, the SLES and WIN option values were not used and have been removed.
• The max_prepared_stmt_count system variable maximum value has been increased from 1 million (1,048,576) to 4 million (4,194,304). The default value remains unchanged at 16,382.
• MySQL 8.0 no longer supports building using wolfSSL. All MySQL builds now use OpenSSL.
• The RE2 library is no longer used by MySQL. The library is no longer bundled with source distributions and the WITH_RE2 CMake option is obsolete.

More Infos: https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-18.html

A big thanks to @fluffy for his help with this update

Security: fc91f2ef-fd7b-11e9-a1c7-b499baebfeaf
Sponsored by: Netzkommune GmbH

Approved by: ports-secteam (wit hat)