Run CI on circle

.circleci/config.yml

@@ -0,0 +1,24 @@
+# Check https://circleci.com/docs/2.0/language-elixir/ for more details on CircleCI configuration
+version: 2
+jobs:
+  build:
+    docker:
+      # specify the version here
+      - image: circleci/elixir:1.9.1
+
+    working_directory: ~/repo
+    steps:
+      - checkout
+      - run:
+          name: "Install Rust and WASM toolchain"
+          command: |
+            curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+            rustup component add rustfmt
+            rustup target add wasm32-unknown-unknown # to compile our example WASM files for testing
+
+      - run: mix deps.get
+      - run: mix test
+      - run: mix format --check-formatted
+      - run: cargo fmt --manifest-path native/wasmex/Cargo.toml  -- --check
+      - run: mix dialyzer
+      - run: mix docs