add hand skeleton

src/graphics/render/NamedSkeletons.hpp

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <memory>
+#include <string>
+#include <unordered_map>
+
+namespace rigging {
+    struct Skeleton;
+    class SkeletonConfig;
+}
+
+class NamedSkeletons {
+public:
+    NamedSkeletons();
+
+    std::shared_ptr<rigging::Skeleton> createSkeleton(
+        const std::string& name, const rigging::SkeletonConfig* config
+    );
+
+    rigging::Skeleton* getSkeleton(const std::string& name);
+private:
+    std::unordered_map<std::string, std::shared_ptr<rigging::Skeleton>> skeletons;
+};