added a layoutmanager and basic dwindle

src/managers/LayoutManager.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include "../layout/DwindleLayout.hpp"
+
+class CLayoutManager {
+public:
+
+    IHyprLayout*    getCurrentLayout();
+
+private:
+    enum HYPRLAYOUTS {
+        DWINDLE = 0,
+    };
+
+    HYPRLAYOUTS m_iCurrentLayoutID = DWINDLE;
+
+    CHyprDwindleLayout m_cDwindleLayout;
+};
+
+inline std::unique_ptr<CLayoutManager> g_pLayoutManager;