Design your node
Before beginning to write your node's source code, you should design the node and plan for the number and types of inputs and outputs it will have.
In this walkthrough, you will be creating two nodes. One, integer_to_string, will take an integer input and convert it to an Amino::String type, and the other, join_strings, will concatenate two Amino::String inputs together.
integer_to_string will need one input port that accepts int, and one output port that outputs an Amino::String.
join_strings will need two input ports that accept Amino::String, and one output port that outputs an Amino::String.
