apply fixes to more headers

code/AssetLib/glTF/glTFAsset.h

@@ -314,7 +314,7 @@ struct Object {
     virtual bool IsSpecial() const { return false; }
 
     Object() = default;
-    virtual ~Object() {}
+    virtual ~Object() = default;
 
     //! Maps special IDs to another ID, where needed. Subclasses may override it (statically)
     static const char *TranslateId(Asset & /*r*/, const char *id) { return id; }
@@ -666,7 +666,7 @@ struct Mesh : public Object {
     std::vector<Primitive> primitives;
     std::list<SExtension *> Extension; ///< List of extensions used in mesh.
 
-    Mesh() {}
+    Mesh() = default;
 
     /// Destructor.
     ~Mesh() {
@@ -706,12 +706,12 @@ struct Node : public Object {
 
     Ref<Node> parent; //!< This is not part of the glTF specification. Used as a helper.
 
-    Node() {}
+    Node() = default;
     void Read(Value &obj, Asset &r);
 };
 
 struct Program : public Object {
-    Program() {}
+    Program() = default;
     void Read(Value &obj, Asset &r);
 };
 
@@ -830,7 +830,7 @@ struct Animation : public Object {
 //! Base class for LazyDict that acts as an interface
 class LazyDictBase {
 public:
-    virtual ~LazyDictBase() {}
+    virtual ~LazyDictBase() = default;
 
     virtual void AttachToDocument(Document &doc) = 0;
     virtual void DetachFromDocument() = 0;