Updating Application Libraries (Redis and Nginx)

The Unikraft ports for popular applications like Redis and Nginx are currently outdated and fail to compile with the latest kernel core. This project solves this problem by updating the application glue code and implementing missing system calls in the ukposix compatibility layer. The main deliverables are fully working, stable, and benchmarked unikernel versions of Redis and Nginx. This work will also improve the overall POSIX support in Unikraft, making it easier to port other applications in the future.