feat(npc): 添加NPC交互高亮效果及复合纹理支持

实现NPC交互时的绿色高亮效果，通过InteractionHighlightSprite类实现
重构NpcAnimation支持复合纹理渲染，优化高亮效果的性能
添加ShaderManager获取所有加载Shader的方法，优化渲染器uniform更新逻辑

Game/include/common/InteractionHighlightSprite.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <frostbite2D/2d/sprite.h>
+
+namespace frostbite2D {
+
+class InteractionHighlightSprite : public Sprite {
+public:
+  InteractionHighlightSprite();
+
+  void SetGroundAnchorInTexture(const Vec2& groundAnchorInTexture);
+
+protected:
+  void ConfigureShader(Shader* shader) const override;
+
+private:
+  Vec2 texelSize_ = Vec2::One();
+};
+
+} // namespace frostbite2D