Show HN: Port of React Tic-Tac-Toe to Exoteric

This is a port of the ReactJS tic-tac-toe example from the intro to React tutorial.

Some changes:

- Classes are removed and replaced with functions

- JSX markup is replaced with standard HTML

- State is POJO

Some similarities:

- Apart from the syntactic changes, the code is nearly identical

- The number of SLOC is also identical