Add basic GitHub workflow to compile code (#47)

* Create rust.yml

* install protobuf

.github/workflows/rust.yml

@@ -0,0 +1,31 @@
+name: Rust
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Install protobuf compiler
+      shell: bash
+      run: |
+        mkdir -p $HOME/d/protoc
+        cd $HOME/d/protoc
+        export PROTO_ZIP="protoc-21.4-linux-x86_64.zip"
+        curl -LO https://github.com/protocolbuffers/protobuf/releases/download/v21.4/$PROTO_ZIP
+        unzip $PROTO_ZIP
+        export PATH=$PATH:$HOME/d/protoc/bin
+        protoc --version    - name: Build
+      run: cargo build --verbose
+    - name: Run tests
+      run: cargo test --verbose