Project-Octree

1. First of all we have to call the class of Octree and send the world size co-ordinates of x,y,z which initializes the octree.
2. Then we call the function addnode with te object of class Octree to add some nodes in the Octree.
3. The the search function is called the same way to search the inserted nodes whether they are inserted in the octree or not.