FileSys: Added preliminary support for applications reading the RomFS archive.

Archive: Fixed brace ugliness for neobrain :)

FS: Commented out unused local variables to prevent warnings.

...But keeping them here for future use.

archive_romfs: Removed unused #include.

src/core/file_sys/archive_romfs.h

@@ -0,0 +1,50 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <vector>
+
+#include "common/common_types.h"
+
+#include "core/file_sys/archive.h"
+#include "core/loader/loader.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// FileSys namespace
+
+namespace FileSys {
+
+/// File system interface to the RomFS archive
+class Archive_RomFS : public Archive {
+public:
+    Archive_RomFS(Loader::AppLoader& app_loader);
+    ~Archive_RomFS();
+
+    /**
+     * Get the IdCode of the archive (e.g. RomFS, SaveData, etc.)
+     * @return IdCode of the archive
+     */
+    IdCode GetIdCode() const { return IdCode::RomFS; };
+
+    /**
+     * Read data from the archive
+     * @param offset Offset in bytes to start reading archive from
+     * @param length Length in bytes to read data from archive
+     * @param buffer Buffer to read data into
+     * @return Number of bytes read
+     */
+    size_t Read(const u64 offset, const u32 length, u8* buffer) const;
+
+    /**
+     * Get the size of the archive in bytes
+     * @return Size of the archive in bytes
+     */
+    size_t GetSize() const;
+
+private:
+    std::vector<u8> raw_data;
+};
+
+} // namespace FileSys