fix: otoroshi js/ts templates

Merge between default template and speicific otoroshi index.js / index.ts
caused inconsistency between function name in index file and plugin.d.ts file.

Fix #41

server/templates/js/index.js

@@ -1,6 +1,6 @@
-function greet() {
+function execute() {
     const name = Host.inputString()
     Host.outputString(`Hello, ${name}`)
 }
 
-module.exports = { greet }
+module.exports = { execute }

server/templates/js/plugin.d.ts

@@ -5,5 +5,5 @@
   DO NOT DELETE THIS FILE
 */
 declare module 'main' {
-  export function greet(): I32;
+  export function execute(): I32;
 }

server/templates/ts/index.ts

@@ -1,6 +1,6 @@
 export declare var Host: any;
 
-export function greet() {
+export function execute() {
     let name = Host.inputString() as String;
 
     Host.outputString(`Hello, ${name}`);

server/templates/ts/plugin.d.ts

@@ -5,5 +5,5 @@
   DO NOT DELETE THIS FILE
 */
 declare module 'main' {
-    export function greet(): I32;
+    export function execute(): I32;
 }