Fails running example basic.py from terminal on my rPI desktop 

```
Traceback (most recent call last):
  File "imu_test.py", line 5, in <module>
    ctx.init(600, 600, "Hello")
RuntimeError: GLFW initialization failed (glfwInit() failed).
This may happen if you try to run bimpy on a headless machine
```

I'm pretty sure doing this from my raspberry pi desktop means it's not headless ;)