School project of a Tree structure.
This project demostrates the data structure of a Tree by creating a family tree and its methods.
1."BinTreeNode" Nodes of binary tree, with data, left-child pointer, right child pointer and parent pointer as private members.
2."BinTree" Binary tree. BinTree is a friend class of BinTreeNode and have access to its private members.
3."FamilyTree" Family tree.