[NEW PORTS]: games/libretro-* libretro cores for compatible emulators

Libretro is a simple API that allows for the creation of games and emulators. It needs a compatible libretro emulator to work (such as retroarch). This is a collection of 48 ports and a meta port to play retrogames.

libretro - meta port for libretro cores
libretro-2048 - 2048 puzzle
libretro-beetle_bsnes - Nintendo SNES emulator from Mednafen
libretro-beetle_gba - Nintendo Gameboy Advance emulator from Mednafen
libretro-beetle_lynx - Atari Lynx emulator from Mednafen
libretro-beetle_ngp - Neogeo Pocket emulator from Mednafen
libretro-beetle_pce_fast - NEC PC Engine emulator from Mednafen
libretro-beetle_pcfx - NEC PCFX emulator from Mednafen
libretro-beetle_psx - Sony Playstation emulator from Mednafen
libretro-beetle_supergrafx - NEC Supergrafx emulator from Mednafen
libretro-beetle_vb - Nintendo Virtual Boy emulator from Mednafen
libretro-beetle_wswan - Bandai Wonderswan emulator from Mednafen
libretro-bluemsx - MSX emulator
libretro-desmume2015 - Nintendo DS emulator
libretro-dosbox - MS-DOS emulator
libretro-emux - Emulator project support a couple of 8bit platforms
libretro-fbalpha - Final Burn Alpha, arcade emulator
libretro-fceumm - Nintendo NES emulator
libretro-fuse - ZX Spectrum emulator
libretro-gambatte - Nintendo Gameboy Color Emulator
libretro-genesis_plus_gx - Sega 8 and 16 bit multi-emulator
libretro-gpsp - Nintendo Gameboy emulator
libretro-gw - Nintendo Game & Watch emulator
libretro-handy - Atari Lynx emulator
libretro-hatari - Atari ST/STE/TT/Falcon emulator
libretro-mame2000 - Multiple Arcade Machine Emulator (0.37b5)
libretro-mame2003 - Multiple Arcade Machine Emulator (0.78)
libretro-mame2003_plus - Multiple Arcade Machine Emulator (0.78 with extra games)
libretro-mgba - Nintendo Gameboy Advance emulator
libretro-nestopia - Nintendo NES emulator
libretro-nxengine - Cave Story engine
libretro-o2em - Magnavox Odyssey 2 / Phillips Videopac emulator
libretro-opera - Panasonic 3DO emulator
libretro-pcsx_rearmed - Sony Playstion 1 emulator
libretro-picodrive - Sega 8 and 16 bit multi-emulator
libretro-prboom - Doom engine
libretro-prosystem - Atari 7800 / Prosystem emulator
libretro-quicknes - Nintendo NES emulator
libretro-scummvm - SCUMMVM backend
libretro-snes9x - Nintendo SNES emulator (Trunk)
libretro-snes9x2005 - Nintendo SNES emulator (1.43)
libretro-snes9x2010 - Nintendo SNES emulator (1.52)
libretro-stella2014 - Atari 2600 emulator
libretro-tgbdual - Nintendo Game Boy / Game Boy Color emulator
libretro-tyrquake - Quake engine
libretro-uae - Commodore Amiga emulator
libretro-vbanext - Nintendo Game Boy Advance emulator
libretro-vecx - GCE Vectrex emulator
libretro-virtualjaguar - Atari Jaguar emulator

PR: 244897
Submitted by: Daniel Menelkir <menelkir@itroll.org>
Approved by: tcberner (mentor)
Differential Revision: https://reviews.freebsd.org/D24516