Add azure pipelines

Author: rylev

.azure-pipelines.yml

@@ -0,0 +1,15 @@
+pr: ["master"]
+
+jobs:
+  - job:
+    pool:
+      vmImage: 'ubuntu-16.04'
+    steps:
+      - template: .ci/install-rust.yml
+        parameters:
+          rust_version: stable
+      - bash: |
+          export RUST_BACKTRACE=1
+          cargo check --all || exit
+          cargo test --all || exit
+        displayName: Run cargo check and test 

.ci/install-rust.yml

@@ -0,0 +1,18 @@
+steps:
+  - script: |
+      set -e
+      curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain $RUSTUP_TOOLCHAIN
+      echo "##vso[task.setvariable variable=PATH;]$PATH:$HOME/.cargo/bin"
+    env:
+      RUSTUP_TOOLCHAIN: ${{parameters.rust_version}}
+    displayName: Install Rust
+
+  # All platforms.
+  - script: |
+        rustc -Vv
+        cargo -V
+    displayName: Query rust and cargo versions
+
+  - script: |
+        rustup target add wasm32-unknown-unknown 
+    displayName: Install wasm target