feat: adding test workflow and fixing build (#1)

note: see #5 to watch it fail

.github/workflows/rust.yml

@@ -0,0 +1,31 @@
+name: Rust
+
+on:
+    push:
+      branches:
+        - main
+    pull_request:
+      branches:
+        - "**"
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+      with:
+        submodules: "recursive"
+        fetch-depth: 1
+
+    - name: Setup Rust
+      uses: actions-rust-lang/setup-rust-toolchain@v1
+
+    - name: Run tests
+      working-directory: program
+      run: cargo test --features test-bpf