Add build matrix

Author: niemyjski

.github/workflows/build.yml renamed to .github/workflows/build-linux.yml

@@ -1,4 +1,4 @@
-name: Build
+name: Build Linux
 on: [ push, pull_request ]
 
 jobs:

.github/workflows/build-osx.yml

@@ -0,0 +1,21 @@
+name: Build OSX
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: macOS-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Build Reason
+        run: "echo ref: ${{github.ref}} event: ${{github.event_name}}"
+      - name: Setup Node.js environment
+        uses: actions/setup-node@v2.1.2
+      - name: NPM install with caching
+        uses: bahmutov/npm-install@v1.1.0
+      - name: Build
+        run: gulp build
+      - name: Run Tests
+        run: gulp test

.github/workflows/build-windows.yml

@@ -0,0 +1,21 @@
+name: Build Windows
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: windows-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Build Reason
+        run: "echo ref: ${{github.ref}} event: ${{github.event_name}}"
+      - name: Setup Node.js environment
+        uses: actions/setup-node@v2.1.2
+      - name: NPM install with caching
+        uses: bahmutov/npm-install@v1.1.0
+      - name: Build
+        run: gulp build
+      - name: Run Tests
+        run: gulp test