feat(instance): folder, AKA probably one of if not the most useless features thus far

core/src/objects/folder.cpp

@@ -0,0 +1,4 @@
+#include "folder.h"
+
+Folder::Folder(): Instance(&TYPE) {}
+Folder::~Folder() = default;

core/src/objects/folder.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include "objects/annotation.h"
+#include "objects/base/instance.h"
+#include <memory>
+
+// The simplest instance
+// Has no functionality of its own, used purely for organizational/grouping purposes
+
+class DEF_INST_(explorer_icon="folder") Folder : public Instance {
+    AUTOGEN_PREAMBLE
+
+public:
+    Folder();
+    ~Folder();
+
+    static inline std::shared_ptr<Folder> New() { return std::make_shared<Folder>(); };
+    static inline std::shared_ptr<Instance> Create() { return std::make_shared<Folder>(); };
+};

core/src/objects/meta.cpp

@@ -1,4 +1,5 @@
 #include "meta.h"
+#include "objects/folder.h"
 #include "objects/joint/jointinstance.h"
 #include "objects/joint/rotate.h"
 #include "objects/joint/rotatev.h"
@@ -23,6 +24,7 @@ std::map<std::string, const InstanceType*> INSTANCE_MAP = {
     { "RotateV", &RotateV::TYPE },
     { "JointInstance", &JointInstance::TYPE },
     { "Script", &Script::TYPE },
+    { "Folder", &Folder::TYPE },
 
     // Services