DLDI/SD folder-sync apparatus (#1251)

guess we can finally have DLDI that isn't obtuse

src/Platform.h

@@ -22,6 +22,7 @@
 #include "types.h"
 
 #include <functional>
+#include <string>
 
 namespace Platform
 {
@@ -31,6 +32,29 @@ void DeInit();
 
 void StopEmu();
 
+// configuration values
+
+enum ConfigEntry
+{
+    DLDI_Enable,
+    DLDI_ImagePath,
+    DLDI_ImageSize,
+    DLDI_ReadOnly,
+    DLDI_FolderSync,
+    DLDI_FolderPath,
+
+    DSiSD_Enable,
+    DSiSD_ImagePath,
+    DSiSD_ImageSize,
+    DSiSD_ReadOnly,
+    DSiSD_FolderSync,
+    DSiSD_FolderPath,
+};
+
+int GetConfigInt(ConfigEntry entry);
+bool GetConfigBool(ConfigEntry entry);
+std::string GetConfigString(ConfigEntry entry);
+
 // fopen() wrappers
 // * OpenFile():
 //     simple fopen() wrapper that supports UTF8.