Add CI workflow

Fixes: https://github.com/trussed-dev/cosey/issues/6

.github/workflows/ci.yml

@@ -0,0 +1,58 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: Build library
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+    - name: Check library
+      run: cargo check
+
+  test:
+    name: Run tests
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+    - name: Run tests
+      run: cargo test
+
+  clippy:
+    name: Run clippy
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+        components: "clippy"
+    - name: Run clippy
+      run: cargo clippy -- -D warnings
+
+  fmt:
+    name: Run rustfmt
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+        components: "rustfmt"
+    - name: Run rustfmt
+      run: cargo fmt -- --check

src/lib.rs

@@ -43,8 +43,8 @@
    }
 */
 
-pub use heapless_bytes::Bytes;
 use core::fmt::{self, Formatter};
+pub use heapless_bytes::Bytes;
 use serde::{
     de::{Error as _, Expected, MapAccess, Unexpected},
     Deserialize, Serialize,