Core/Misc: update g3dlite lib (#2904)

* Core/Misc: update g3dlite lib

* update

Co-authored-by: Francesco Borzì <borzifrancesco@gmail.com>

deps/g3dlite/include/G3D/GUniqueID.h

@@ -1,16 +1,18 @@
 /**
-  @file GUniqueID.h
-  @author Morgan McGuire, http://graphics.cs.williams.edu
+  \file G3D/GUniqueID.h
+  \author Morgan McGuire, http://graphics.cs.williams.edu
  */
-#ifndef G3D_GUNIQUEID_H
-#define G3D_GUNIQUEID_H
+#ifndef G3D_GUniqueID_h
+#define G3D_GUniqueID_h
 
 #include "G3D/platform.h"
 #include "G3D/g3dmath.h"
 #include "G3D/Table.h"
 
 namespace G3D {
-
+     
+class Any;
+    
 /** Globally unique identifiers. The probability of two different
     programs generating the same value from UniqueID::create is
     vanishingly small.
@@ -25,8 +27,27 @@ private:
 
 public:
 
+    /** \sa create */
     GUniqueID() : id(0) {}
 
+    GUniqueID& operator=(const Any& a);
+
+    /** \sa create */
+    GUniqueID(const Any& a) {
+        *this = a;
+    }
+
+    Any toAny() const;
+
+    /** Returns a 16-character string equivalent to this GUniqueID's uint64 value. */
+    std::string toString16() const;
+
+    static GUniqueID fromString16(const std::string& s);
+
+    /** Returns the ID that has the specified tag (so that it is not uninitialized), but
+        which is a common sentinel "none" value. */
+    static GUniqueID NONE(uint16 tag);
+
     bool uninitialized() const {
         return id == 0;
     }
@@ -37,7 +58,7 @@ public:
 
     operator uint64() const {
         return id;
-    }
+    }    
 
     bool operator==(const GUniqueID& other) const {
         return id == other.id;