[WIP] Add workflow to launch Chromium, run tests, and dump tree on Linux

This will supersede existing workflow because it already include building
the NodeJS module on Linux.

.github/workflows/launch_chromium.yml

@@ -0,0 +1,61 @@
+name: Test NodeJS Dump Tree
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  launch_chromium:
+    name: Dump tree against Chromium on Linux
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install System dependencies
+        run: sudo apt install -y at-spi2-core libatspi2.0-dev libnode-dev
+      - name: Install Chromium
+        run: sudo apt install -y chromium-browser
+      - name: Launch D-Bus Session bus service
+        run: dbus-daemon --session &
+      - name: Launch AT-SPI2 service
+        run: |
+          mkdir -p /run/user/1001/at-spi
+          /usr/libexec/at-spi-bus-launcher &
+          /usr/libexec/at-spi2-registryd --use-gnome-session &
+          ps aux | grep at-spi
+      - name: Install node-gyp
+        run: sudo npm install -g node-gyp
+      - name: Launch Chromium
+        shell: bash
+        run: |
+          export QT_ACCESSIBILITY=1
+          export XDG_RUNTIME_DIR=/run/user/1001
+          export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1001/bus
+          /usr/bin/chromium --force-renderer-accessibility --headless=new --disable-gpu "https://igalia.com" > /dev/null 2>&1 &
+      - name: Install SWIG 4.1.0
+        run: |
+          wget "https://github.com/swig/swig/archive/refs/tags/v4.1.0.tar.gz"
+          tar -axf v4.1.0.tar.gz
+          cd swig-4.1.0
+          ./autogen.sh
+          ./configure --without-alllang --with-javascript --with-jsv8inc=/usr/include/v8 --with-jsv8lib=/usr/lib --with-python3
+          make -j
+          sudo make install
+      - uses: actions/checkout@v3
+      - name: Configure Project
+        run: |
+          mkdir -p build
+          cd build
+          cmake .. -DACACIA_NODEJS=on -DACACIA_PYTHON=off -DACACIA_TESTS=on
+      - name: Build project
+        run: |
+          cd build
+          make -j
+      - name: Run tests
+        run: |
+          cd build
+          make test
+      - name: Run dump_tree_atspi examples
+        shell: bash
+        run: |
+          cd build
+          ps aux | grep chromium
+          ./examples/atspi/dump_tree_atspi --name chromium