Add helper scripts for building and testing all packages

.github/workflows/build_sandbox.js.yml

@@ -0,0 +1,13 @@
+name: Build-Sandbox
+on: push
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install modules
+      working-directory: ./Sandbox
+      run: npm ci
+    - name: Run build
+      working-directory: ./Sandbox
+      run: npm run build

.github/workflows/tests_sandbox.js.yml

@@ -0,0 +1,13 @@
+name: Tests-Sandbox
+on: push
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install modules
+      working-directory: ./Sandbox
+      run: npm ci
+    - name: Run tests
+      working-directory: ./Sandbox
+      run: npm test

Editor/package.json

@@ -8,7 +8,8 @@
     "test": "tests"
   },
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "build": "echo \"Nothing to build\" && exit 0",
+    "test": "echo \"No tests\" && exit 0"
   },
   "keywords": [],
   "author": "",

Sandbox/package.json

@@ -5,7 +5,8 @@
   "description": "",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "build": "echo \"Nothing to build\" && exit 0",
+    "test": "echo \"No tests\" && exit 0"
   },
   "keywords": [],
   "author": "",

build_all.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+echo "Building Core..."
+npm run build --prefix Core
+
+echo "Building Editor..."
+npm run build --prefix Editor
+
+echo "Building Sandbox..."
+npm run build --prefix Sandbox

test_all.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+echo "Testing Core..."
+npm run test --prefix Core
+
+echo "Testing Editor..."
+npm run test --prefix Editor
+
+echo "Testing Sandbox..."
+npm run test --prefix Sandbox