Initial work on patch list

arm7/source/loader/PatchListFactory.cpp

@@ -0,0 +1,24 @@
+#include "common.h"
+#include "PatchListFactory.h"
+
+std::unique_ptr<PatchList> PatchListFactory::CreateFromFile(const TCHAR* path)
+{
+    FIL file;
+    if (f_open(&file, path, FA_OPEN_EXISTING | FA_READ) != FR_OK)
+    {
+        LOG_FATAL("Failed to open patch list file\n");
+        return nullptr;
+    }
+    u32 fileSize = f_size(&file);
+    auto fileContents = std::make_unique_for_overwrite<u8[]>(fileSize);
+    UINT bytesRead = 0;
+    FRESULT result = f_read(&file, fileContents.get(), fileSize, &bytesRead);
+    if (result != FR_OK || bytesRead != fileSize)
+    {
+        LOG_FATAL("Failed to read patch list file\n");
+        return nullptr;
+    }
+    f_close(&file);
+
+    return std::make_unique<PatchList>(std::move(fileContents));
+}