Add mac universal fuse build scripts

scripts/arm64-osx-1015.cmake

+set(VCPKG_TARGET_ARCHITECTURE arm64)
+set(VCPKG_OSX_DEPLOYMENT_TARGET 10.15)
+set(VCPKG_CRT_LINKAGE dynamic)
+set(VCPKG_LIBRARY_LINKAGE static)
+
+set(VCPKG_CMAKE_SYSTEM_NAME Darwin)
+set(VCPKG_OSX_ARCHITECTURES arm64)

scripts/make-macos-universal.sh

+#!/usr/bin/env bash
+
+# Makes a fused macOS Universal app bundle in the arm64 release preset dir
+# Only works if in master branch or in source tarball
+
+set -e
+
+rm -rf "build/ninja-x64_osx_vcpkg-release"
+rm -rf "build/ninja-arm64_osx_vcpkg-release"
+cmake --preset ninja-x64_osx_vcpkg-release -DVCPKG_OVERLAY_TRIPLETS=scripts/ -DVCPKG_TARGET_TRIPLET=x64-osx-1015 -DCMAKE_OSX_ARCHITECTURES=x86_64 -DCMAKE_OSX_DEPLOYMENT_TARGET=10.15 "-DSRB2_SDL2_EXE_NAME=srb2"
+cmake --build --preset ninja-x64_osx_vcpkg-release
+cmake --preset ninja-arm64_osx_vcpkg-release -DVCPKG_OVERLAY_TRIPLETS=scripts/ -DVCPKG_TARGET_TRIPLET=arm64-osx-1015 -DCMAKE_OSX_ARCHITECTURES=arm64 -DCMAKE_OSX_DEPLOYMENT_TARGET=10.15 "-DSRB2_SDL2_EXE_NAME=srb2"
+cmake --build --preset ninja-arm64_osx_vcpkg-release
+
+mkdir -p build/dist
+rm -rf "build/dist/Sonic Robo Blast 2.app" "build/dist/srb2.app"
+
+cp -r build/ninja-arm64_osx_vcpkg-release/bin/srb2.app build/dist/
+
+lipo -create \
+	-output "build/dist/srb2.app/Contents/MacOS/srb2" \
+	build/ninja-x64_osx_vcpkg-release/bin/srb2.app/Contents/MacOS/srb2 \
+	build/ninja-arm64_osx_vcpkg-release/bin/srb2.app/Contents/MacOS/srb2
+
+mv build/dist/srb2.app "build/dist/Sonic Robo Blast 2.app"

scripts/x64-osx-1015.cmake

+set(VCPKG_TARGET_ARCHITECTURE x64)
+set(VCPKG_OSX_DEPLOYMENT_TARGET 10.15)
+set(VCPKG_CRT_LINKAGE dynamic)
+set(VCPKG_LIBRARY_LINKAGE static)
+
+set(VCPKG_CMAKE_SYSTEM_NAME Darwin)
+set(VCPKG_OSX_ARCHITECTURES x86_64)