Move clusterioMod file creation

Move the creation of the output.txt, orders.txt and txbuffer.txt script
output files out of the client.js code and into the clusterioMod.

client.js

@@ -331,9 +331,6 @@ async function createInstance(config, args, instance) {
 	console.log("Creating instance...");
 	fs.mkdirSync(instance.path());
 	fs.mkdirSync(instance.path("script-output"));
-	fs.writeFileSync(instance.path("script-output", "output.txt"), "");
-	fs.writeFileSync(instance.path("script-output", "orders.txt"), "");
-	fs.writeFileSync(instance.path("script-output", "txbuffer.txt"), "");
 	fs.mkdirSync(instance.path("mods"));
 	fs.mkdirSync(instance.path("instanceMods"));
     fs.mkdirSync(instance.path("scenarios"));

lib/factorioServer/index.js

@@ -78,9 +78,6 @@ module.exports = class factorioServer {
 		
 		// create files
 		let files = [
-			{name: "/script-output/output.txt", content: ""},
-			{name: "/script-output/orders.txt", content: ""},
-			{name: "/script-output/txbuffer.txt", content: ""},
 			{name: "/config.ini", content: "[path]\r\n\ read-data=__PATH__executable__/../../data\r\n\ write-data=__PATH__executable__/../../../" + this.instanceDirectory + "\r\n\ "},
 			{name: "/config.json", content: JSON.stringify({
 				factorioPort: this.factorioPort,

sharedPlugins/clusterioMod/index.js

@@ -10,6 +10,12 @@ const getLua = require("lib/clusterTools/getLua");
 const pluginConfig = require("./config");
 const COMPRESS_LUA = false;
 
+function ensureFileSync(path) {
+	if (!fs.existsSync(path)) {
+		fs.outputFileSync(path, "");
+	}
+}
+
 module.exports = class remoteCommands {
 	constructor(mergedConfig, messageInterface, extras){
 		this.messageInterface = messageInterface;
@@ -27,6 +33,10 @@ module.exports = class remoteCommands {
 				'x-access-token': this.config.masterAuthToken
 			},
 		};
+
+		ensureFileSync(instancedirectory + "/script-output/output.txt");
+		ensureFileSync(instancedirectory + "/script-output/orders.txt");
+		ensureFileSync(instancedirectory + "/script-output/txbuffer.txt");
 		
 		(async ()=>{
 			let hotpatchInstallStatus = await checkHotpatchInstallation(this.messageInterface);