add CI workflows

.github/workflows/format.yaml

@@ -0,0 +1,32 @@
+name: format
+
+on:
+  pull_request:
+     branches:
+      - master
+  push:
+    branches:
+      - master
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  format:
+    name: format
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout repository
+        uses: actions/checkout@v3
+      - name: install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          components: rustfmt
+          override: true
+      - name: run rustfmt
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check

.github/workflows/lint.yaml

@@ -0,0 +1,33 @@
+name: lint
+
+on:
+  pull_request:
+     branches:
+      - master
+  push:
+    branches:
+      - master
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  clippy:
+    name: clippy
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout repository
+        uses: actions/checkout@v3
+      - name: install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          components: clippy
+          override: true
+      - name: run clippy
+        uses: actions-rs/clippy-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          args: --all-features
+          name: clippy output

.github/workflows/test.yaml

@@ -0,0 +1,36 @@
+name: test
+
+on:
+  pull_request:
+     branches:
+      - master
+  push:
+    branches:
+      - master
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout repository
+        uses: actions/checkout@v3
+      - name: install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - name: install tarpaulin
+        uses: actions-rs/cargo@v1
+        with:
+          command: install
+          args: cargo-tarpaulin
+      - name: run tarpaulin
+        uses: actions-rs/cargo@v1
+        with:
+          command: tarpaulin
+          args: --coveralls ${{ secrets.COVERALLS_TOKEN }}