[PACKAGE/BOARD] Add Retroarch v1.16.0.3 (#50)

* Add retroarch package

* libretro cores as separate packages

* Add libretro-super package

* Add core resources, move retroarch bin to /mnt/emus/retroarch dir

* add NxEngine assets + correct indendt

* [BOARD] add cores appLinks

* [GENIMAGE] test -d before running cp to not stderr

* [BOARD] add "cores" section in gmenu2x with all appLinks

* add PRBOOM data *.wad file

* [GENIMAGE] generate cores' script links in genimage.sh

* Add scummvm core & downgrade

* [GENIMAGE] don't run cores in verbose

* resort `core links` and update their icons

---------

Co-authored-by: Apaczer <94932128+Apaczer@users.noreply.github.com>

board/miyoo/main/emus/retroarch/retroarch_history.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+
+start_retroarch_func(){
+  cd /mnt/emus/retroarch
+  if ! read -n 1 -t 1 -s; then
+    local history_path='/mnt/.retroarch/content_history.lpl'
+    if test -f "${history_path}"; then
+      local rom_path="$(head -n20 "${history_path}" | grep -Eo -m1 '/mnt/roms/[^"]+')"
+      local core_path="$(head -n20 "${history_path}" | grep -Eo -m1 '/mnt/.retroarch/cores/.+\.so')"
+      if test -f "${core_path}" -a -f "${rom_path}"; then
+        clear
+        echo -e "\n\n\n\n\n\n\n\n\n\n\n\n\n\n              \e[1;33m[ LOADING ]\e[0m"
+        ./retroarch --load-menu-on-error --libretro "${core_path}" "${rom_path}" > /dev/null 2>&1
+        return
+      fi
+    fi
+  fi
+  ./retroarch --menu > /dev/null 2>&1
+}
+
+start_retroarch_func