add common crate

Signed-off-by: xermicus <cyrill@parity.io>

crates/common/.github/workflows/cargo-license.yaml

@@ -0,0 +1,9 @@
+name: Cargo license check
+on: pull_request
+
+jobs:
+  cargo-deny:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: EmbarkStudios/cargo-deny-action@v1

crates/common/.github/workflows/ci.yaml

@@ -0,0 +1,23 @@
+name: "Rust CI"
+on:
+  pull_request:
+
+jobs:
+  build:
+    name: cargo build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions-rust-lang/setup-rust-toolchain@v1
+      - run: cargo build --verbose
+
+  formatting:
+    name: cargo fmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          components: rustfmt
+      - name: Rustfmt Check
+        uses: actions-rust-lang/rustfmt@v1

crates/common/.github/workflows/secrets_scanner.yaml

@@ -0,0 +1,17 @@
+name: Leaked Secrets Scan
+on: [pull_request]
+jobs:
+  TruffleHog:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3
+        with:
+          fetch-depth: 0
+      - name: TruffleHog OSS
+        uses: trufflesecurity/trufflehog@0c66d30c1f4075cee1aada2e1ab46dabb1b0071a
+        with:
+          path: ./
+          base: ${{ github.event.repository.default_branch }}
+          head: HEAD
+          extra_args: --debug --only-verified