feat(plc4rs): Add transport layer with TCP/UDP implementations

.github/workflows/ci.yml

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+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+name: Industrial CI
+on: [push, pull_request]
+
+jobs:
+  industrial_validation:
+    name: Protocol Implementation Validation
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust: [stable, 1.75.0]
+        platform: [x86_64, aarch64]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Rust Toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          target: ${{ matrix.platform }}-unknown-linux-gnu
+          override: true
+
+      - name: Cache Dependencies
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Security Audit
+        uses: actions-rs/audit-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Protocol Tests
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --all-features --target ${{ matrix.platform }}-unknown-linux-gnu
+
+  industrial_linting:
+    name: Industrial-Grade Linting
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions-rs/clippy-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          args: --all-targets --all-features -- -D warnings
+
+      - uses: actions-rs/format-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          args: --all -- --check

plc4rs/CONTRIBUTING.md

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+<!--
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+  -->