* Update to 3.1.15
* Modernize portfile
* Keep plugins
* Always use vcpkg zlib instead vendored copy
* Use zlib and openssl modules in pc file
* Always install pc file, drop non-relocatable mariadb_config
* UWP is not supported
* Use schannel SSL backend on windows
* Fix exported includedir and libdir
* Fixup windows pc file
* Disable extra static lib
* Disable plugins with extra dependencies
* [libmariadb] Namespace targets with unofficial::
* Update versions
* Enable CI for x86-windows: no conflict with mysql
* Re-enable lib mariadbclient via feature
* Use openssl targets to handle multi-config
* Update versions
* CR request
* Update versions
* [libmariadb] Fix plugin installation, fix pkgconfig
* fix installation
* update version stuff
Co-authored-by: Billy Robert ONeal III <bion@microsoft.com>