Added copy constructors and assignment operators to Array and Dictionary

include/core/Array.hpp

@@ -22,6 +22,8 @@ class Array {
 	godot_array _godot_array;
 public:
 	Array();
+	Array(const Array & other);
+	Array & operator=(const Array & other);
 
 	Array(const PoolByteArray& a);
 

include/core/Dictionary.hpp

@@ -13,6 +13,8 @@ class Dictionary {
 	godot_dictionary _godot_dictionary;
 public:
 	Dictionary();
+	Dictionary(const Dictionary & other);
+	Dictionary & operator=(const Dictionary & other);
 
 	void clear();