BDM-UDPFS Assault ALPHA release

This is an ALPHA release. It may contain bugs.

BDM Assault with read-only UDPFS fallback:
if a .VCD file isn't found on the USB drive, POPStarter will attempt to read it from a UDPFS server (udpfsd or udpfs_server.py).

Files:

• bdm_udp_fs_assault.irx -> mc?:/POPSTARTER/usbd.irx
• usbd_bd_assault.irx -> mc?:/POPSTARTER/usbhdfsd.irx

READY_TO_USE/POPSTARTER in the archive has both files with the right names.
No other file is needed: the PS2 uses defaults unless you add the optional IPCONFIG.DAT / UDPFSCONFIG.DAT.

Usage and what goes where: __bdm_udp_fs_assault/README.MD
Network configuration (IPCONFIG.DAT, UDPFSCONFIG.DAT): __bdm_udp_fs_assault/docs/README_CONFIG.txt
Third-party licenses: __bdm_udp_fs_assault/docs/THIRD_PARTY_NOTICES.md

This is built specifically for POPStarter, other homebrew are out of scope.