Complete the insert() function

Insert a node that stores the "data" passed in the list while still maintaining the sorted order.

The traversal and if condition are already done for you.

  1. Edit List.cpp. You will edit List::insert(int data).
  2. Implement the pointer logic in the section of code labeled "PUT CODE HERE". For example, if the linked list is:
      	m_head -> 1 -> 4 -> 5 -> 7 -> 8 -> NULL
    
    Lets say you wanted to insert 6. current would stop at the node that has 5. It is your task to get a new Node with the value of 6 inserted between 5 and 7.