Add rust-dos core info (#2168)

dist/info/rust_dos_libretro.info

@@ -0,0 +1,37 @@
+# Software Information
+display_name = "DOS (rust-dos)"
+authors = "dividebysandwich"
+supported_extensions = "exe|com|bat|zip|dosz|dosc|7z|conf|img|ima|vfd|flp|dsk|86f|vhd|hdd|iso|cue|ins|chd|m3u|m3u8"
+corename = "rust-dos"
+categories = "Emulator"
+license = "GPLv2+"
+permissions = ""
+display_version = "1.8.0"
+
+# Hardware Information
+manufacturer = "IBM"
+systemname = "DOS"
+systemid = "dos"
+
+# Libretro Features
+database = "DOS"
+supports_no_game = "true"
+savestate = "true"
+savestate_features = "serialized"
+cheats = "false"
+input_descriptors = "true"
+memory_descriptors = "true"
+libretro_saves = "false"
+core_options = "true"
+core_options_version = "2.0"
+load_subsystem = "false"
+hw_render = "false"
+needs_fullpath = "true"
+disk_control = "true"
+is_experimental = "true"
+needs_kbd_mouse_focus = "true"
+
+firmware_count = 0
+notes = "Settings, SoundFonts and MT-32 ROMs go in system/rust-dos/rust-dos.conf. Ctrl+F12 opens the settings window (L3+R3 on a gamepad). Turn on Game Focus (Scroll Lock) for the whole keyboard."
+
+description = "rust-dos, an x86 PC emulator with a DOS of its own: 386 to Pentium MMX, CGA to SVGA, the Tseng ET4000 and the S3 Trio64, a 3dfx Voodoo, Sound Blaster, Gravis Ultrasound, AdLib and General MIDI. Runs DOS programs and games from folders, zip archives, disk and CD images, and boots systems such as Windows 95."