ci: GitHub Action->Docker Hub container builder(s) (#351)

* initial commit of Windows builder

* fix job stage names

* add Switch image builder

* revert to old meson for now

* unify image building scripts

* fix typo

.github/workflows/build-ci-container.yml

@@ -0,0 +1,41 @@
+name: Build CI Container
+
+on:
+  workflow_dispatch:
+    inputs:
+      custom_ref:
+        required: false
+        description: "Commit ref that contains the Dockerfile you want to use (if left blank: master HEAD)"
+      container_type:
+        type: choice
+        description: "Container type to build"
+        options:
+          - windows
+          - switch
+          - linux
+      image_tag:
+        required: true
+        description: "Container tag to push (usually the date: YYYYMMDD)"
+
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+    steps:
+    - name: Checkout Code
+      uses: actions/checkout@v3
+      with:
+        ref: ${{ github.event.inputs.custom_ref }}
+
+    - name: Login to Docker Hub Registry
+      uses: docker/login-action@v2
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+    - name: Build/Push Docker image
+      uses: docker/build-push-action@v3
+      with:
+        context: .
+        file: misc/ci/Dockerfile.${{ github.event.inputs.container_type }}
+        push: true
+        tags: taiseiproject/${{ github.events.inputs.container_type }}-toolkit:${{ github.event.inputs.image_tag }}