add Apple universal libraries build configuration.

[cntrump]

automatically determine toolchain location using xcrun.

• no asm
• only build static libraries
• armv7 is deprecated for devices
• i386 is deprecated for simulators

Examples

Build for macOS:

./Configure apple-universal-macosx enable-tls1_3 --prefix="$(pwd)/out/macosx" --libdir="$(pwd)/out/macosx/lib"
make clean
make -j
make install_sw

Build for macCatalyst:

./Configure apple-universal-maccatalyst enable-tls1_3 --prefix="$(pwd)/out/maccatalyst" --libdir="$(pwd)/out/maccatalyst/lib"
make clean
make -j
make install_sw

Build for iOS and simulator:

./Configure apple-universal-ios enable-tls1_3 --prefix="$(pwd)/out/ios" --libdir="$(pwd)/out/ios/lib"
make clean
make -j
make install_sw

./Configure apple-universal-iossim enable-tls1_3 --prefix="$(pwd)/out/iossim" --libdir="$(pwd)/out/iossim/lib"
make clean
make -j
make install_sw

Build for tvOS and simulator:

./Configure apple-universal-tvos enable-tls1_3 --prefix="$(pwd)/out/tvos" --libdir="$(pwd)/out/tvos/lib"
make clean
make -j
make install_sw

./Configure apple-universal-tvossim enable-tls1_3 --prefix="$(pwd)/out/tvossim" --libdir="$(pwd)/out/tvossim/lib"
make clean
make -j
make install_sw

Build for watchOS and simulator:

./Configure apple-universal-watchos enable-tls1_3 --prefix="$(pwd)/out/watchos" --libdir="$(pwd)/out/watchos/lib"
make clean
make -j
make install_sw

./Configure apple-universal-watchossim enable-tls1_3 --prefix="$(pwd)/out/watchossim" --libdir="$(pwd)/out/watchossim/lib"
make clean
make -j
make install_sw

Build for visionOS and simulator:

./Configure apple-universal-visionos enable-tls1_3 --prefix="$(pwd)/out/visionos" --libdir="$(pwd)/out/visionos/lib"
make clean
make -j
make install_sw

./Configure apple-universal-visionossim enable-tls1_3 --prefix="$(pwd)/out/visionossim" --libdir="$(pwd)/out/visionossim/lib"
make clean
make -j
make install_sw