Sound artefacts during the 'table startup' and non-reacting ball on the initial launch

[achtchaern]

1. During the startup sound (the swipe up), the sound distorts at the last second
2. When trying to load the spring just a little bit in order to light just 3 lights on the ramp (which is rewarded with 75K points), the ball oftentimes doesn't move at all. In order for it to actually go up, you need the load the spring so much that you won't be able to get 75K points.

Both of these issues started with the newest version. Neither the number of sound channels nor the tick rate affects these issues.

[k4zmu2a]

N1 is the same as #191, the solution is to update SDL to version >= 2.28.0
I fixed this for Windows binaries. On Linux, you have to update SDL library yourself.

N2 is a bug – plunger pullback speed was too fast in 3DPB mode.
I fixed it. The fix will be released in V2.1.1.