Change to improve development process

- use local build script instead of xcratch-build
- build automatically
- use local setup script instead of xcratch-register
- no modify scratch-vm/scratch-gui
- eslint according to origin
- test using Mocha

.eslintignore

@@ -0,0 +1,5 @@
+coverage/*
+dist/*
+node_modules/*
+playground/*
+benchmark/*

.gitignore

@@ -1 +1,5 @@
-/node_modules
+node_modules/
+
+src/vm/*
+!src/vm/extensions/
+!src/vm/.*

.mocharc.js

@@ -0,0 +1,4 @@
+module.exports = {
+  require: ["@babel/register", "./test/setup-test.js"],
+  spec: "test/unit/**/*.test.js",
+};

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2021 Koji Yokokawa
+Copyright (c) 2021-2024 Koji Yokokawa
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

babel.config.json

@@ -0,0 +1,13 @@
+{
+    "presets": [
+      [
+        "@babel/preset-env",
+        {
+          "targets": {
+            "node": true
+          },
+          "useBuiltIns": "entry"
+        }
+      ]
+    ]
+  }