added bladeburner functions related to action levels

src/NetscriptBladeburner.js

@@ -0,0 +1,27 @@
+import {Player}               from "./Player";
+import {Bladeburner}          from "./Bladeburner";
+import {makeRuntimeRejectMsg} from "./NetscriptEvaluator";
+
+function unknownBladeburnerActionErrorMessage(functionName, actionType, actionName) {
+	return `ERROR: bladeburner.${functionName}() failed due to an invalid action specified. ` +
+		`Type: ${actionType}, Name: ${actionName}. Note that for contracts and operations, the ` +
+		`name of the operation is case-sensitive.`;
+}
+
+function unknownBladeburnerExceptionMessage(functionName, err) {
+	return `Bladeburner.${functionName}() failed with exception: ` + err;
+}
+
+function checkBladeburnerAccess(workerScript, functionName) {
+	const accessDenied = `${functionName}() failed because you do not` +
+		" currently have access to the Bladeburner API. This is either" +
+		" because you are not currently employed at the Bladeburner division" +
+		" or because you do not have Source-File 7";
+	console.log(Player.sourceFiles);
+	const hasAccess = Player.bladeburner instanceof Bladeburner && (Player.bitNodeN === 7 || Player.sourceFiles.some(a=>{return a.n === 7}));
+	if(!hasAccess) {
+		throw makeRuntimeRejectMsg(workerScript, accessDenied);
+	}
+}
+
+export {unknownBladeburnerActionErrorMessage, unknownBladeburnerExceptionMessage, checkBladeburnerAccess};