Double Linked List Implmenetation

Supported functions:

• Print linked list Print()
• Get the next node Next()
• Get the previous node Previous()
• Get the first node in the Linked List First()
• Get the last node in the Linked List Last()
• Get the relative N-th node in the Linked List Nth()
• Append to the end of Linked List Append()
• Insert at the N-th position in the Linked List Insert(index)
• Remove from Linked List Remove()
• Brute force search in Linkde List BruteSearch()
• Merge sort the Linked List Sort()
• Binary search the Linked List BinarySearch()