Increase muzzle velocity and aoe for uef and seraphim gunship

[SomeSwkoll]

This fixes the issue where a single flak can circle dodge vs uef and seraphim gunships and take no damage. In my tests muzzle velocity increases alone were insufficient to counter circle dodge so a combination of aoe increases and muzzle velocity increases to achieve the desired result.

Muzzle velocity 40 -> 60 Damage radius 0 -> 1

[Garanas]

The branch should point to deploy/fafbeta.

Note that increasing the muzzle velocity increases the chances of having the collision bug. Especially the t1 Aeon artillery is prone to that: if a projectile ends up colliding with multiple things at once in a frame, it ends up picking the last thing it hit. For a gunship shooting at the t1 Aeon artillery this is the ground, because the tech 1 Aeon artillery is really small / flat. This is why some units are really good at 'evading damage from gunships while walking in a straight line'.

Providing it a damage radius eliminates the problem. My point though is that these changes require each other - if you increase the muzzle velocity, a damage radius (to some degree) is required.

[4z0t]

Giving aoe allows killing reclaim and dealing damage to stacked units which might be not as intended. May be very effective against engies groups as well.

[Tagada14]

I think we should look into a very slight homing in the way it was done with Jester.