Add SfxTrigger from 2.2!

The library version turned out to be symbolic!
The first trigger from Geometry Dash 2.2 and the library version is v0.2.22

level.Blocks.Add(new SfxTrigger()
{
    PositionX = 30,
    PositionY = 30,
    Pitch = 2,
    Speed = -3
});