Create your own STL library as mySTL.h create a mySTL.h header file in C++ that will contain these templated classes and methods. 1. SingleLinkedList class a. insertAtLast b. insertAtFirst c. insertAtAnyPos d. insertBeforeElement e. deleteElementByValue f. deleteAtPos g. displaylist 2. DoubleLinkedList class a. insertAtLast b. insertAtFirst c. insertAtAnyPos d. insertBeforeElement e. deleteElement f. deletePos g. displaylist 3. Stack class (use linked list instead of array) a. push b. pop c. top 4. Queue class (use linked list instead of array) a. enqueue b. dequeue c. front d. rear 5. BST class a. insertIntoBST b. searchInBST c. displayInorder d. displayPreorder e. displayPostorder Finally demonstrate the use of your mySTL library in a demo.cpp file. You must submit two cpp files 1. mySTL.cpp and 2. demo.cpp