feat: Organize RyujinGUI project structure

- Aligning the RyujinGUI project structure with the main Ryujin project structure.

RyujinGUI/RyujinApp.hh

@@ -0,0 +1,39 @@
+#include <wx/wx.h>
+#include <wx/filedlg.h>
+#include <wx/gauge.h>
+#include <wx/textdlg.h>
+#include <wx/statline.h>
+#include <wx/mstream.h>
+#include <thread>
+#include "resource.h"
+#include "RyujinCore.hh"
+
+class RyujinApp : public wxApp {
+
+private:
+    wxTextCtrl* m_input = nullptr;
+    wxTextCtrl* m_pdb = nullptr;
+    wxTextCtrl* m_output = nullptr;
+    wxCheckBox* m_virtualize = nullptr;
+    wxCheckBox* m_junk = nullptr;
+    wxCheckBox* m_encrypt = nullptr;
+    wxCheckBox* m_randomSection = nullptr;
+    wxCheckBox* m_obfuscateIat = nullptr;
+    wxCheckBox* m_ignoreOriginalCodeRemove = nullptr;
+    wxListBox* m_procList = nullptr;
+    wxGauge* m_progress = nullptr;
+
+    auto DrawnPathRow(wxWindow* parent, wxBoxSizer* sizer, const wxString& label, int buttonId) -> wxTextCtrl*;
+    auto DrawnStyledCheckbox(wxWindow* parent, const wxString& label) -> wxCheckBox*;
+    auto DrawnRyujinButton(wxWindow* parent, const wxString& label, int id) -> wxButton*;
+    auto BindFileDialogs(wxFrame* frame) -> void;
+    auto BindListEvents(wxFrame* frame) -> void;
+    auto BindRunEvent(wxFrame* frame) -> void;
+    auto LoadPngFromRes(wxWindow* parent, wxWindowID id, int resId) -> wxStaticBitmap*;
+
+public:
+    bool OnInit() override;
+
+};
+
+wxIMPLEMENT_APP(RyujinApp);