Add workflow to check fmt, clippy and run tests

.github/actions/iota-sandbox/setup/action.yml

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+name: 'iota-sandbox-setup'
+description: 'Setup IOTA Sandbox'
+runs:
+  using: "composite"
+  steps:
+    - name: Setup iota sandbox
+      shell: bash
+      run: |
+        # Use next lines for using the GitHub release
+        mkdir iota-sandbox
+        cd iota-sandbox
+        mkdir sandbox
+        cd sandbox
+        # Use the output of https://api.github.com/repos/iotaledger/iota-sandbox/releases/latest
+        DOWNLOAD_URL=$(curl "https://api.github.com/repos/iotaledger/iota-sandbox/releases" | jq -r '.[0].assets[] | select(.name | contains("iota_sandbox")) | .browser_download_url')
+        echo "Downloading sandbox from $DOWNLOAD_URL"
+        curl -L -o iota_sandbox.tar.gz $DOWNLOAD_URL
+        tar -xf iota_sandbox.tar.gz
+
+        # Use the next lines to use the main branch
+        # git clone https://github.com/iotaledger/iota-sandbox
+        # cd iota-sandbox/sandbox
+
+        # Start Tangle
+        sudo ./bootstrap.sh
+        docker compose --profile inx-faucet up -d
+    - name: Wait for tangle to start
+      shell: bash
+      run: wget -qO- https://raw.githubusercontent.com/eficode/wait-for/$WAIT_FOR_VERSION/wait-for | sh -s -- -t 60 http://localhost/health -- echo "Tangle is up"
+      env:
+        WAIT_FOR_VERSION: 4df3f9262d84cab0039c07bf861045fbb3c20ab7 # v2.2.3
+    - name: Wait for faucet to start
+      shell: bash
+      run: wget -qO- https://raw.githubusercontent.com/eficode/wait-for/$WAIT_FOR_VERSION/wait-for | sh -s -- -t 60 http://localhost/faucet/api/info -- echo "Faucet is up"
+      env:
+        WAIT_FOR_VERSION: 4df3f9262d84cab0039c07bf861045fbb3c20ab7 # v2.2.3

.github/actions/iota-sandbox/tear-down/action.yml

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+name: 'iota-sandbox-tear-down'
+description: 'tear-down a iota sandbox'
+runs:
+  using: "composite"
+  steps:
+    - name: Tear down iota sandbox
+      shell: bash
+      run: |
+        cd iota-sandbox/sandbox
+        docker-compose down
+        cd ../..
+        sudo rm -rf iota-sandbox

.github/workflows/clippy.yml

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+name: clippy & fmt
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [ opened, synchronize, reopened, ready_for_review ]
+    branches:
+      - main
+
+jobs:
+  clippy-and-fmt:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Update local toolchain
+        run: |
+          rustup update
+          rustup component add clippy
+      - name: Toolchain info
+        run: |
+          cargo --version --verbose
+          rustc --version
+          cargo clippy --version
+      - name: Check formatting
+        run: cargo fmt -- --check
+      - name: Run clippy
+        run: cargo clippy -- -D warnings

.github/workflows/run-tests.yml

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+name: Run tests
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [ opened, synchronize, reopened, ready_for_review ]
+    branches:
+      - main
+
+jobs:
+  run-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Update local toolchain
+        run: |
+          rustup update
+          rustup component add clippy
+      - name: Toolchain info
+        run: |
+          cargo --version --verbose
+          rustc --version
+          cargo clippy --version
+      - name: Start iota sandbox
+        uses: './.github/actions/iota-sandbox/setup'
+      - name: Run tests
+        run: cargo test --release
+      - name: Stop iota sandbox
+        uses: './.github/actions/iota-sandbox/tear-down'