Edualgo

In this release, few new things have been added

- bogo_sort, merge_sort, heap_sort, quick_sort
- one greedy algorithm
- linear_serach, interpolation_search, binary_search
- stacks (Unstable)
- queue (Unstable)

There is a new feature known as **Algorithm Hints**
* added algorithm hint method for **bubble sort**
* added algorithm hint method for **selection sort**
* added string algorithm hint method for **isUnique()** method
* added string algorithm hint method for **isPermutation()** method
* string algorithm hint method for **URLify()** method

Added the below implementations based on the **string/array algorithms**,
* Check a string is made up of unique characters
* Check if one string is a permutation of the other
* URLify the given string with a key
* Check if a string is a permutation of a palindrome
* Check if two strings are one Edit away
* Compress a string in a fashion
* Rotate a matrix in clockwise direction

In this release, the package has got the following new methods,

* Binary Tree module introduced
* Added the following implementations of the binary tree:
* Printing the binary tree
* Sum of binary tree nodes in a range
* Merge two binary trees
* Checking if two trees are the same

Added the following implementations,
* Getting the intersection node between two linked lists
* Given the binary representation of an integer, return the decimal value
* Given a linked list, find the next larger nodes

Added some documentation