add GitHub CI workflow

Author: rursprung

.github/workflows/CI.yml

@@ -0,0 +1,34 @@
+name: CI
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Install target
+        run: rustup target add thumbv7em-none-eabihf
+      - name: Install flip-link
+        run: cargo install flip-link
+      - uses: actions/checkout@v3
+      - uses: actions-rs/cargo@v1
+        with:
+          command: build
+      - uses: actions-rs/cargo@v1
+        with:
+          command: test
+      - uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+      - uses: actions-rs/cargo@v1
+        with:
+          command: clippy