* [curl] fix build failure when VCPKG_BUILD_TYPE is set
* [libmysql] fix build failure when VCPKG_BUILD_TYPE is set
* [openssl-windows] use VCPKG_BUILD_TYPE to build release or debug only
* [icu] use VCPKG_BUILD_TYPE to build release or debug only
* [gdal] use VCPKG_BUILD_TYPE to build release or debug only
* bump versions of curl, gdal, icu, libmysql and openssl-windows
1. upgraded upstream mysql version to 5.7.17
2. simplified the patch size from 12K to 2K
3. enabled static build
4. switched mysql.h file to mysql/mysql.h