feat(new_editor): add standalone add-component utility window

new_editor/app/Platform/Win32/EditorUtilityWindowRegistry.cpp

@@ -1,5 +1,6 @@
 #include "Platform/Win32/EditorUtilityWindowRegistry.h"
 
+#include "Platform/Win32/EditorAddComponentUtilityWindowContentController.h"
 #include "Platform/Win32/EditorColorPickerUtilityWindowContentController.h"
 
 namespace XCEngine::UI::Editor::App {
@@ -16,6 +17,14 @@ constexpr EditorUtilityWindowDescriptor kColorPickerUtilityWindowDescriptor = {
     .minimumOuterSize = UISize(320.0f, 460.0f),
 };
 
+constexpr EditorUtilityWindowDescriptor kAddComponentUtilityWindowDescriptor = {
+    .kind = EditorUtilityWindowKind::AddComponent,
+    .windowId = "utility.add-component",
+    .title = L"Add Component",
+    .preferredOuterSize = UISize(352.0f, 500.0f),
+    .minimumOuterSize = UISize(320.0f, 460.0f),
+};
+
 }
 
 const EditorUtilityWindowDescriptor* ResolveEditorUtilityWindowDescriptor(
@@ -23,6 +32,8 @@ const EditorUtilityWindowDescriptor* ResolveEditorUtilityWindowDescriptor(
     switch (kind) {
     case EditorUtilityWindowKind::ColorPicker:
         return &kColorPickerUtilityWindowDescriptor;
+    case EditorUtilityWindowKind::AddComponent:
+        return &kAddComponentUtilityWindowDescriptor;
     case EditorUtilityWindowKind::None:
     default:
         return nullptr;
@@ -41,6 +52,9 @@ std::unique_ptr<EditorWindowContentController> CreateEditorUtilityWindowContentC
     case EditorUtilityWindowKind::ColorPicker:
         return CreateEditorColorPickerUtilityWindowContentController(
             descriptor->minimumOuterSize);
+    case EditorUtilityWindowKind::AddComponent:
+        return CreateEditorAddComponentUtilityWindowContentController(
+            descriptor->minimumOuterSize);
     case EditorUtilityWindowKind::None:
     default:
         return nullptr;