Add windows build script

dist/win/build

@@ -0,0 +1,30 @@
+#!/usr/bin/bash
+set -e
+
+target='x86_64-pc-windows-gnu'
+pkgdir="$PWD"
+pkgfile="$pkgdir/win.zip"
+srcdir="$PWD/../.."
+
+build() {
+    cd "$srcdir"
+
+    export RUSTUP_TOOLCHAIN=stable
+    export CARGO_TARGET_DIR=target
+
+    cargo fetch --locked --target "$target"
+    cargo build --frozen --release --all-features --target "$target"
+    cargo test --frozen --all-features
+}
+
+package() {
+    cd "$srcdir"
+    cp "target/$target/release/wipe.exe" "$pkgdir"
+    cp 'LICENSE' "$pkgdir"
+
+    cd "$pkgdir"
+    zip -m "$pkgfile" 'wipe.exe' 'LICENSE'
+}
+
+build
+package