Unit tests source notes.md #2

Hi, A while ago I created some tutorials on creating a CI environment for UE4 and considerations for running C++ tests. Maybe they'll be useful for: Unit tests source notes.md.

I leave the links here:

• Jenkins, CI and Test-Driven Development
• Considerations On Testing UE4 Classes Part I: Worlds, Ticks and Forces
• Considerations On Testing UE4 Classes Part II: Editor clicks and Gamepad/Keyboard button presses
• Considerations On Testing UE4 Classes Part III: Replication