add snapshot download example

Author: michael-weigelt

rust/canister-snapshot-download/.cargo/config.toml

@@ -0,0 +1,4 @@
+[build]
+target = ["wasm32-unknown-unknown"]
+
+[target.wasm32-unknown-unknown]

rust/canister-snapshot-download/.gitignore

@@ -0,0 +1,27 @@
+# Various IDEs and Editors
+.vscode/
+.idea/
+**/*~
+
+# Mac OSX temporary files
+.DS_Store
+**/.DS_Store
+
+# dfx temporary files
+.dfx/
+
+# generated files
+**/declarations/
+
+# rust
+target/
+
+# frontend code
+node_modules/
+dist/
+.svelte-kit/
+
+# environment variables
+.env
+
+snapshots/