Implementation of multiplayer-game via phaser3, express and socket.io
All credits to phasertutorials
https://phasertutorials.com/creating-a-simple-multiplayer-game-in-phaser-3-with-an-authoritative-server-part-1/
https://phasertutorials.com/creating-a-simple-multiplayer-game-in-phaser-3-with-an-authoritative-server-part-2/
https://phasertutorials.com/creating-a-simple-multiplayer-game-in-phaser-3-with-an-authoritative-server-part-3/