Fix #386: NRE downstream from OnLoad

-need to cache KSPField references in OnAwake instead of OnStart because other code can call functions that use them before the module has been started

Author: JonnyOThan

SCANsat/SCAN_PartModules/SCANresourceDisplay.cs

@@ -59,15 +59,19 @@ public float MaxAbundanceAltitude
 			get { return maxAbundanceAltitude; }
 		}
 
+		public override void OnAwake()
+		{
+			base.OnAwake();
+			abundanceField = Fields["abundance"];
+		}
+
 		public override void OnStart(PartModule.StartState state)
 		{
 			if (state == StartState.Editor)
 			{
 				return;
 			}
 
-			abundanceField = Fields["abundance"];
-
 			GameEvents.onVesselSOIChanged.Add(onSOIChange);
 
 			part.force_activate();

SCANsat/SCAN_PartModules/SCANsat.cs

@@ -84,17 +84,20 @@ public bool scanningNow
 
 		protected bool UpdateScannerInfo = true;
 
-		/* SAT: KSP entry points */
-		public override void OnStart(StartState state)
+		public override void OnAwake()
 		{
+			base.OnAwake();
 			scanInfoStatus = Fields["scanStatus"];
 			scanInfoAltitude = Fields["scanAltitude"];
 			scanInfoType = Fields["scanType"];
 			scanInfoFOV = Fields["scanFOV"];
 			scanInfoPower = Fields["scanPower"];
 			scanInfoDaylight = Fields["scanDaylight"];
+		}
 
-
+		/* SAT: KSP entry points */
+		public override void OnStart(StartState state)
+		{
 			if (state == StartState.Editor)
 			{
 				print("[SCANsat] start: in editor");