feat: archive full dolphin-emu/Sys, add DSP/font/IPL paths to pack

dolphin-emu/Sys/ folder (2562 files) from libretro/dolphin Data/Sys.
retroarch.yml: DSP firmware (dsp_coef.bin, dsp_rom.bin), fonts
(font_western.bin, font_japanese.bin) at dolphin-emu/Sys/GC/ paths.
ref: DolphinLibretro/Boot.cpp:72-73, HW/DSPLLE/DSPHost.cpp,
HW/EXI/EXI_DeviceIPL.cpp. pack: 452 files, 0 missing.

platforms/retroarch.yml

@@ -1247,6 +1247,18 @@ systems:
     - name: gc-ntsc-12.bin
       destination: dolphin-emu/Sys/GC/JAP/IPL.bin
       required: false
+    - name: dsp_coef.bin
+      destination: dolphin-emu/Sys/GC/dsp_coef.bin
+      required: true
+    - name: dsp_rom.bin
+      destination: dolphin-emu/Sys/GC/dsp_rom.bin
+      required: true
+    - name: font_western.bin
+      destination: dolphin-emu/Sys/GC/font_western.bin
+      required: false
+    - name: font_japanese.bin
+      destination: dolphin-emu/Sys/GC/font_japanese.bin
+      required: false
     core: dolphin
     manufacturer: Nintendo
     docs: https://docs.libretro.com/library/dolphin/