* [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
* fix issue #3683 - fix ICU build on Linux
The following changes allow ICU to build on Linux:
- use the ICU tgz distribution rather than the zip file, to avoid CRLF
line endings on Linux
- don't use MSYS on Linux
- fix runConfigureICU options for Linux
- fix CFLAGS, CXXFLAGS, and LDFLAGS for Linux
- don't rename the resulting libraries on Linux
* [icu] Enable VCPKG_CXX_FLAGS
* [icu] Formatting
