Virtual device abstraction (#1577)

* IOFile: removes seek limit checks when file is writable

* add virtual devices scaffold

* add stdin/out/err as virtual devices

* fixed some merging issues

* clang-fix

---------

Co-authored-by: georgemoralis <giorgosmrls@gmail.com>

src/core/devices/logger.h

@@ -0,0 +1,37 @@
+//  SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+//  SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "base_device.h"
+
+#include <mutex>
+#include <string>
+#include <vector>
+
+namespace Core::Devices {
+
+class Logger final : BaseDevice {
+    std::string prefix;
+    bool is_err;
+
+    std::recursive_mutex mtx;
+    std::vector<char> buffer;
+
+public:
+    explicit Logger(std::string prefix, bool is_err);
+
+    ~Logger() override;
+
+    s64 write(const void* buf, size_t nbytes) override;
+    size_t writev(const Libraries::Kernel::SceKernelIovec* iov, int iovcnt) override;
+    s64 pwrite(const void* buf, size_t nbytes, u64 offset) override;
+
+    s32 fsync() override;
+
+private:
+    void log(const char* buf, size_t nbytes);
+    void log_flush();
+};
+
+} // namespace Core::Devices