Function consecutively

consecutively(list_of_sounds: List): Sound
Makes a new Sound by combining the sounds in a given list where the second Sound is appended to the end of the first Sound, the third Sound is appended to the end of the second Sound, and so on. The effect is that the Sounds in the list are joined end-to-end
Parameters
- list_of_sounds: List
  given list of Sounds
Returns Sound
the combined Sound
Example
```
consecutively(list(sine_sound(200, 2), sine_sound(400, 3)));
```