Add initial work towards patch support

Makefile

@@ -54,6 +54,7 @@ SRCS = \
 	menu/path.c \
 	menu/png_decoder.c \
 	menu/rom_info.c \
+	menu/rom_patch_info.c \
 	menu/settings.c \
 	menu/sound.c \
 	menu/usb_comm.c \
@@ -67,6 +68,7 @@ SRCS = \
 	menu/views/load_disk.c \
 	menu/views/load_emulator.c \
 	menu/views/load_rom.c \
+	menu/views/load_patch.c \
 	menu/views/music_player.c \
 	menu/views/startup.c \
 	menu/views/system_info.c \

src/menu/menu.c

@@ -147,6 +147,7 @@ static view_t menu_views[] = {
     { MENU_MODE_FLASHCART, view_flashcart_info_init, view_flashcart_info_display },
     { MENU_MODE_LOAD_ROM, view_load_rom_init, view_load_rom_display },
     { MENU_MODE_LOAD_DISK, view_load_disk_init, view_load_disk_display },
+    { MENU_MODE_LOAD_ROM_PATCH,  view_load_rom_patch_init, view_load_rom_patch_display },
     { MENU_MODE_LOAD_EMULATOR, view_load_emulator_init, view_load_emulator_display },
     { MENU_MODE_ERROR, view_error_init, view_error_display },
     { MENU_MODE_FAULT, view_fault_init, view_fault_display },

src/menu/menu_state.h

@@ -12,6 +12,7 @@
 
 #include "boot/boot.h"
 #include "disk_info.h"
+#include "rom_patch_info.h"
 #include "flashcart/flashcart.h"
 #include "path.h"
 #include "rom_info.h"
@@ -35,6 +36,7 @@ typedef enum {
     MENU_MODE_LOAD_ROM,
     MENU_MODE_LOAD_DISK,
     MENU_MODE_LOAD_EMULATOR,
+    MENU_MODE_LOAD_ROM_PATCH,
     MENU_MODE_ERROR,
     MENU_MODE_FAULT,
     MENU_MODE_BOOT,
@@ -45,6 +47,7 @@ typedef enum {
     ENTRY_TYPE_DIR,
     ENTRY_TYPE_ROM,
     ENTRY_TYPE_DISK,
+    ENTRY_TYPE_ROM_PATCH,
     ENTRY_TYPE_EMULATOR,
     ENTRY_TYPE_SAVE,
     ENTRY_TYPE_IMAGE,
@@ -103,6 +106,8 @@ typedef struct {
         rom_info_t rom_info;
         path_t *disk_path;
         disk_info_t disk_info;
+        path_t *rom_patch_path;
+        rom_patch_info_t rom_patch_info;
     } load;
 
     struct {