set gc memory high pressure to 50% of total memory (sadly it may decide to ignore); change show stats memory report; let robust also show memory on show stats

OpenSim/Region/Application/runtimeconfig.template.json

@@ -1,7 +1,11 @@
 {
-  "configProperties": {
-    "System.GC.Server": false,
-    "System.Drawing.EnableUnixSupport": true,
-    "System.Globalization.UseNls": true,
+    "configProperties": {
+      "System.GC.Server": false,
+	  "System.GC.HighMemoryPercent": 50,
+      "System.Drawing.EnableUnixSupport": true,
+      "System.Globalization.UseNls": true,
+      "System.Reflection.Metadata.MetadataUpdater.IsSupported": false,
+      "System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization": true,
+      "System.Runtime.TieredCompilation.QuickJit": false
   }
 }

OpenSim/Region/Framework/Scenes/ScenePresence.cs

@@ -1234,7 +1234,9 @@ namespace OpenSim.Region.Framework.Scenes
                 }
                 */
                 scriptedcontrols.Clear();
+                // gc gets confused with this cycling
                 ControllingClient = null;
+                GodController = null; // gc gets confused with this cycling
             }
         }