Imported Lumix imgui_dock files from commit 2f36422e145f535f5

3rdparty/imgui_dock_lumix/original/imgui_dock.h

@@ -0,0 +1,23 @@
+#pragma once
+
+
+namespace Lumix { namespace FS { class OsFile; } }
+
+
+struct lua_State;
+
+
+namespace ImGui
+{
+
+
+IMGUI_API void ShutdownDock();
+IMGUI_API void RootDock(const ImVec2& pos, const ImVec2& size);
+IMGUI_API bool BeginDock(const char* label, bool* opened = nullptr, ImGuiWindowFlags extra_flags = 0, const ImVec2& default_size = ImVec2(-1, -1));
+IMGUI_API void EndDock();
+IMGUI_API void SetDockActive();
+IMGUI_API void SaveDock(Lumix::FS::OsFile& file);
+IMGUI_API void LoadDock(lua_State* L);
+
+
+} // namespace ImGui