Make crdCustomizations optional

Author: Javatar81

operator-gen-maven-plugin/src/main/java/org/acme/Configuration.java

@@ -45,8 +45,12 @@ public Config getConfig() {
 	}
 
 	public List<String> getIgnoreProps() {
-		String ignoreProps = crdCustomizations.get("ignoreProps").toString();
-		return Arrays.asList(ignoreProps.split(","));
+		if (crdCustomizations.get("ignoreProps") != null) {
+			String ignoreProps = crdCustomizations.get("ignoreProps").toString();
+			return Arrays.asList(ignoreProps.split(","));
+		} else {
+			return Collections.emptyList();
+		}
 	}
 
 }

operator-gen-maven-plugin/src/main/java/org/acme/OperatorGenMojo.java

@@ -61,7 +61,7 @@ public class OperatorGenMojo
 	private List<String> pathParamMappings = null;
 
 	@Parameter(property = "crdCustomizations", required = false)
-	private Properties crdCustomizations = null;
+	private Properties crdCustomizations = new Properties();
 
     /**
      * Location of the generated source code.