Add appveyor pipeline

appveyor.yml

@@ -0,0 +1,38 @@
+version: 1.0.{build}
+
+image: Ubuntu
+
+environment:
+  MOZBUILD_PATH: /home/appveyor/.mozbuild
+
+cache:
+  - /home/appveyor/.mozbuild
+
+# Only build on tags
+skip_non_tags: true
+
+install:
+  - sudo apt-get update
+  - sudo apt-get install -y build-essential make msitools wget unzip python3 python3-dev python3-pip git p7zip-full golang-go aria2
+
+build_script:
+  - make setup-minimal
+  - make mozbootstrap
+  - mkdir -p dist
+
+test_script:
+  - python3 ./multibuild.py --target windows macos linux --arch x86_64
+
+artifacts:
+  - path: dist/*
+    name: CamoufoxBuilds
+
+deploy:
+  provider: GitHub
+  auth_token:
+    secure: $(GITHUB_TOKEN)
+  artifact: CamoufoxBuilds
+  draft: true
+  prerelease: false
+  on:
+    APPVEYOR_REPO_TAG: true