Fix validation of events and abstract entities (#9)

Author: michelu89

.graalvm/reflect-config.json

@@ -80,6 +80,28 @@
       }
     ]
   },
+  {
+    "name": "io.openmanufacturing.sds.metamodel.loader.instantiator.EventInstantiator",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": [
+          "io.openmanufacturing.sds.metamodel.loader.ModelElementFactory"
+        ]
+      }
+    ]
+  },
+  {
+    "name": "io.openmanufacturing.sds.metamodel.loader.instantiator.AbstractEntityInstantiator",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": [
+          "io.openmanufacturing.sds.metamodel.loader.ModelElementFactory"
+        ]
+      }
+    ]
+  },
   {
     "name": "io.openmanufacturing.sds.metamodel.loader.instantiator.EncodingConstraintInstantiator",
     "methods": [