All types of trees

[Nishu39321]

I would like to create a folder for trees, which would contain separate folders for different kinds of trees, e.g., BST, AVL, B trees (2-4), Red-Black trees and many more which are not easily there on internet.
The codes for these trees would include:

1. Insertion
2. Deletion
3. Rotation
   And anything to make it easy for user to understand. I would also like to include proper visualization for the user as to how nodes are deleted and inserted, and different kinds of rotations occur.

I request @pankaj-bind to assign this issue to me.