add appveyor configuration

.appveyor.yml

@@ -0,0 +1,45 @@
+version: "0.1.0.{build}-{branch}"
+
+os: Visual Studio 2019
+
+environment:
+  global:
+    PROJECT_NAME: doukutsu-rs
+  matrix:
+    - channel: stable
+      target: x86_64-pc-windows-msvc
+      target_name: win64
+    - channel: stable
+      target: i686-pc-windows-msvc
+      target_name: win32
+
+install:
+  - appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
+  - rustup-init -yv --default-toolchain %channel% --default-host %target%
+  - set PATH=%PATH%;%USERPROFILE%\.cargo\bin
+  - rustup update
+  - rustc -vV
+  - cargo -vV
+
+build: false
+
+cache:
+  - '%USERPROFILE%\.cache\sccache -> rust-toolchain,.appveyor.yml'
+  - '%USERPROFILE%\.cargo -> rust-toolchain,.appveyor.yml'
+  - '%USERPROFILE%\.rustup -> rust-toolchain,.appveyor.yml'
+  - 'target -> rust-toolchain,.appveyor.yml'
+
+#test_script:
+#  - cargo build --verbose --all
+#  - cargo test --verbose --all --no-fail-fast
+
+before_deploy:
+  - cargo build --release --bin doukutsu-rs
+  - mkdir release
+  - copy target\release\doukutsu-rs.exe release
+  - cd release
+  - appveyor DownloadFile https://github.com/doukutsu-rs/game-data/archive/master.zip -FileName ../game-data.zip
+  - 7z x ../game-data.zip
+  - rename game-data-master data
+  - 7z a ../doukutsu-rs_%APPVEYOR_BUILD_VERSION%_%target_name%.zip *
+  - appveyor PushArtifact ../doukutsu-rs_%APPVEYOR_BUILD_VERSION%_%target_name%.zip *