2.8.1

• Cherry-picked many fix commits to get 2.8 to build
• Created xcframeworks with create_frameworks.sh
• Manually removed *.modulemap and sibling header JavaInject.xcframework and JSR305.xcframework to avoid duplicate symbols
• Replaced frameworks created from make -j8 frameworks with these new xcframeworks to avoid having to import libs and add linker flags
• Makefile is updated to only build needed architectures
• Removed -Werror flag from common Makefile