Add Switch/libnx workflow

.github/workflows/PS4-ORBIS.yml

@@ -1,4 +1,4 @@
-name: CI ORBIS
+name: CI PS4/ORBIS
 
 on:
   push:

.github/workflows/Switch-libnx.yml

@@ -0,0 +1,34 @@
+name: CI Switch/libnx
+
+on:
+  push:
+  pull_request:
+  repository_dispatch:
+    types: [run_build]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container: 
+      image: git.libretro.com:5050/libretro-infrastructure/libretro-build-libnx-devkitpro:latest
+      options: --user root
+
+    steps:
+    - uses: actions/checkout@v3
+    
+    - name: Compile RA
+      run: |
+        make -f Makefile.libnx -j$(getconf _NPROCESSORS_ONLN) clean
+        make -f Makefile.libnx -j$(getconf _NPROCESSORS_ONLN) HAVE_STATIC_DUMMY=1
+    - name: Get short SHA
+      id: slug
+      run: echo "::set-output name=sha8::$(echo ${GITHUB_SHA} | cut -c1-8)"
+    
+    - uses: actions/upload-artifact@v3
+      with:
+        name: RA-libnx-dummy-${{ steps.slug.outputs.sha8 }}
+        path: |
+          retroarch_switch.nro