Asteroids update

[Cobqlt]

Hi, imho with the change and the mining unit you can add some ressources on asteroids.

1. Add a low chance of T1 Meganode in T4 asteroids and higher in T5 asteroids
2. Add asteroids on Symeon/Ion/Lacobus
3. Don't allow PVP asteroids spawn at less than 10SU of the safezone
4. Add a button for stop the DSAT (with a dynamic cross section who reduce when you stop it)
5. Don't add asteroids only on Saturday and Sunday, but throughout the week with a duration of 7 days per asteroids. Giving more interest to the rest of the week and not concentrating all the activity on these two days only.

[Physics]

You will get a stronger call for rarity info and discover list to be removed from DSAT with these changes.