Add an rpc client to interface with block engine http server

.github/actions/setup-rust/action.yaml

@@ -0,0 +1,41 @@
+name: Setup Rust
+description: Installs rust in a bare metal fashion
+inputs:
+  caller-workflow-name:
+    description: 'Name of workflow used for creating a cache key in ASCII format.'
+    required: true
+    default: ''
+
+runs:
+  using: composite
+  steps:
+    - name: Generate cache key
+      id: cache-key-generator
+      run: echo "cache-key=$(echo ${{inputs.caller-workflow-name}} | tr ' ' '_')" >> $GITHUB_OUTPUT
+      shell: bash
+
+    - name: Check cache key
+      run: "echo Cache key: ${{ steps.cache-key-generator.outputs.cache-key }}"
+      shell: bash
+
+    - name: cache dependencies
+      uses: actions/cache@v3
+      with:
+        path: |
+          ~/.cargo
+        key: ${{ runner.os }}-cargo-${{ steps.cache-key-generator.outputs.cache-key }}-${{ hashFiles('**/Cargo.lock') }}
+
+    - name: cache rust files
+      uses: actions/cache@v3
+      with:
+        path: |
+          target/
+        key: ${{ runner.os }}-cargo-${{ steps.cache-key-generator.outputs.cache-key }}-${{ hashFiles('**/*.rs') }}
+
+    - name: Check rust version
+      run: |
+        rustc --version || true;
+        cargo --version || true;
+        cargo clippy --version || true;
+        cargo fmt --version || true;
+      shell: bash

.github/workflows/lint_build_test.yml

@@ -0,0 +1,38 @@
+name: build
+
+on:
+  pull_request:
+
+jobs:
+  lint_build_test:
+    runs-on: ubuntu-20.04-16c-64g
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+
+      - name: Sanity Check
+        run: |
+          cat /proc/cpuinfo
+
+      - name: Setup Rust
+        uses: ./.github/actions/setup-rust
+        with:
+          caller-workflow-name: test
+
+      - name: Setup Rust tools
+        run: |
+          cargo install cargo-sort
+
+      - name: Workspace sort
+        run: cargo sort --workspace --check
+
+      - name: Fmt
+        run: cargo fmt --all --check
+
+      - name: Clippy check
+        run: cargo clippy --all-features --all-targets --tests -- -D warnings
+
+      - name: Run tests
+        run: cargo test --all-features --locked

.gitignore

@@ -0,0 +1,2 @@
+.idea
+/target