[Data Structure] Binary search tree

[Rizzen]

BST implementation

[willwolfram18]

Are there any additional requirements for writing the BST implementation?

[Rizzen]

Are there any additional requirements for writing the BST implementation?

It must be BST, tests should be written. You allowed to use any language. If you use C# - preferable test framework - xUnit.

[willwolfram18]

Alright, so BST written in C# which includes xUnit tests. Consider it done!