Added a simple FTP Server payload:

• Compile the project and burn the contents of assembly/target/assembly-1.0-SNAPSHOT to BD-RE. Pre-compiled ISO is also provided.
• Send the FTP Server payload to the JAR Loader: java -jar ftp-server-1.0-SNAPHSOT.jar <PS5 IP>
• Login to the FTP server with username ps5jb and no password on port 9225.

Stable release of the JAR loader