Fix some abnormally small SoIs.

Closes #287

Author: siimav

GameData/RealSolarSystem/RSSKopernicus/Mars/Deimos.cfg

@@ -35,6 +35,7 @@
 			gravParameter = 9.615569648120313e+4
 			solarRotationPeriod = False
 			rotationPeriod = 109123.2
+			sphereOfInfluence = 45000
 			tidallyLocked = true
 			initialRotation = 0
 			isHomeWorld = false

GameData/RealSolarSystem/RSSKopernicus/Mars/Phobos.cfg

@@ -33,6 +33,7 @@
 			description = #RSS_Phobos_desc//One of two natural satellites orbiting Mars, Phobos is named after the Greek god which was depicted as the embodiment of horror. Phobos is the larger and closer natural body around Mars
 			radius = 7250
 			gravParameter = 7.087546066894452e+5
+			sphereOfInfluence = 47000
 			solarRotationPeriod = False
 			rotationPeriod = 27553.843872
 			tidallyLocked = true

GameData/RealSolarSystem/RSSKopernicus/Saturn/Mimas.cfg

@@ -33,6 +33,7 @@
 			description = #RSS_Mimas_desc//Mimas, not Minmas, is the closest regular moon to Saturn, and the smallest body to keep a spherical shape in the solar system.  It definitely isn't the Death Star.
 			radius = 198200
 			gravParameter = 2.503524000000e+9
+			sphereOfInfluence = 396000
 			solarRotationPeriod = False
 			rotationPeriod = 81388.8
 			tidallyLocked = true