Create OLF Knitro AC solver extension

.github/workflows/maven.yml

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+name: CI
+
+on:
+  push:
+    branches:
+      - 'main'
+      - 'release-v**'
+      - 'full-sonar-analysis-**'
+  pull_request:
+
+jobs:
+  build:
+    name: Build OS ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]  # macos-latest : Knitro does not yet support Java API on macOS, to be tried later on
+
+    steps:
+      - name: Install Knitro (Linux)
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          wget -nv -O knitro.tar.gz --user "$KNITRO_DOWNLOAD_USER" --password "$KNITRO_DOWNLOAD_PASSWORD" "$KNITRO_LINUX_URL"
+          mkdir -p $RUNNER_TEMP/knitro
+          tar xzf knitro.tar.gz -C $RUNNER_TEMP/knitro
+          echo "KNITRODIR=$RUNNER_TEMP/knitro/knitro-14.1.0-Linux64" >> "$GITHUB_ENV"
+        env:
+          KNITRO_DOWNLOAD_USER: ${{ secrets.KNITRO_DOWNLOAD_USER }}
+          KNITRO_DOWNLOAD_PASSWORD: ${{ secrets.KNITRO_DOWNLOAD_PASSWORD }}
+          KNITRO_LINUX_URL: ${{ secrets.KNITRO_LINUX_URL }}
+
+      - name: Install Knitro (Windows)
+        if: matrix.os == 'windows-latest'
+        shell: powershell
+        run: |
+          C:\msys64\usr\bin\wget.exe -nv -O knitro.zip --user "$env:KNITRO_DOWNLOAD_USER" --password "$env:KNITRO_DOWNLOAD_PASSWORD" "$env:KNITRO_WINDOWS_URL"
+          7z x -y knitro.zip -oC:\knitro
+          echo "KNITRODIR=C:\knitro\knitro-14.1.0-Win64" >> "$env:GITHUB_ENV"
+        env:
+          KNITRO_DOWNLOAD_USER: ${{ secrets.KNITRO_DOWNLOAD_USER }}
+          KNITRO_DOWNLOAD_PASSWORD: ${{ secrets.KNITRO_DOWNLOAD_PASSWORD }}
+          KNITRO_WINDOWS_URL: ${{ secrets.KNITRO_WINDOWS_URL }}
+
+      - name: Checkout sources
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+
+      - name: Build with Maven (Ubuntu)
+        if: matrix.os != 'windows-latest'
+        run: |
+          ./mvnw install:install-file -Dfile="$KNITRODIR/examples/Java/lib/Knitro-Interfaces-2.5-KN_14.1.0.jar" -DgroupId=com.artelys -DartifactId=knitro-interfaces -Dversion=14.1.0 -Dpackaging=jar -DgeneratePom=true
+          ./mvnw --batch-mode -Pjacoco install
+        env:
+          ARTELYS_LICENSE: ${{ secrets.ARTELYS_LICENSE }}
+
+      - name: Build with Maven (Windows)
+        if: matrix.os == 'windows-latest'
+        run: |
+          call mvnw.cmd install:install-file -Dfile="%KNITRODIR%\examples\Java\lib\Knitro-Interfaces-2.5-KN_14.1.0.jar" -DgroupId=com.artelys -DartifactId=knitro-interfaces -Dversion=14.1.0 -Dpackaging=jar -DgeneratePom=true
+          mvnw.cmd --batch-mode install
+        shell: cmd
+        env:
+          ARTELYS_LICENSE: ${{ secrets.ARTELYS_LICENSE }}
+
+      - name: Run SonarCloud analysis
+        if: matrix.os == 'ubuntu-latest'
+        run: >
+          ./mvnw --batch-mode -DskipTests sonar:sonar
+          -Dsonar.host.url=https://sonarcloud.io
+          -Dsonar.organization=powsybl-ci-github
+          -Dsonar.projectKey=com.powsybl:powsybl-open-loadflow-knitro-solver
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}

.gitignore

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+# Maven projects
+target/
+
+# IntelliJ
+/.idea
+*.iml
+
+# Eclipse projects
+.classpath
+.project
+org.eclipse.core.resources.prefs
+org.eclipse.jdt.core.prefs
+org.eclipse.m2e.core.prefs
+org.eclipse.jdt.groovy.core.prefs
+
+# Maven wrapper jar
+.mvn/wrapper/*.jar
+
+# Generated readthedocs pages
+build-docs/

.mvn/wrapper/maven-wrapper.properties

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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.
+
+
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.3/apache-maven-3.9.3-bin.zip
+distributionSha256Sum=80b3b63df0e40ca8cde902bb1a40e4488ede24b3f282bd7bd6fba8eb5a7e055c
+
+# Beware: wrapperUrl must not be set! It prevents the "MVNW_REPOURL" envvar to work when downloading maven-wrapper
+# SHA-256 of maven-wrapper-3.2.0.jar:
+wrapperSha256Sum=e63a53cfb9c4d291ebe3c2b0edacb7622bbc480326beaa5a0456e412f52f066a