Add CI workflows for multiple platforms and configurations

.github/workflows/cuda.yml

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+name: CUDA CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  cuda-build-and-test:
+    runs-on: ubuntu-latest
+    container:
+      image: nvidia/cuda:11.4.2-devel-ubuntu20.04
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Install dependencies
+        run: |
+          apt-get update && apt-get install -y cmake build-essential libboost-all-dev libhdf5-dev libgmp-dev libtbb-dev
+          # Add additional dependencies as needed
+
+      - name: Configure CMake
+        run: |
+          mkdir -p build
+          cd build
+          cmake .. -DCMAKE_BUILD_TYPE=Release -DGPU_CUDA_ON=ON
+
+      - name: Build
+        run: |
+          cd build
+          make -j$(nproc)
+
+      - name: Run Tests
+        run: |
+          cd build
+          ctest --output-on-failure

.github/workflows/fedora.yml

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+name: Fedora CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build-and-test:
+    runs-on: fedora-latest
+
+    strategy:
+      matrix:
+        compiler: [gcc-11, gcc-12, gcc-13, gcc-14, clang-8, clang-9]
+        build_type: [Release, Debug]
+        technology: [OpenMP, MPI, HDF5]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Install dependencies
+        run: |
+          sudo dnf install -y cmake boost-devel hdf5-devel gmp-devel tbb-devel
+          if [[ "${{ matrix.compiler }}" == gcc* ]]; then
+            sudo dnf install -y ${{ matrix.compiler }} ${{ matrix.compiler }}-base;
+          elif [[ "${{ matrix.compiler }}" == clang* ]]; then
+            sudo dnf install -y ${{ matrix.compiler }};
+          fi
+          if [[ "${{ matrix.technology }}" == "MPI" ]]; then
+            sudo dnf install -y openmpi-devel;
+          fi

.github/workflows/ubuntu.yml

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+name: Ubuntu CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        compiler: [gcc-11, gcc-12, gcc-13, gcc-14, clang-8, clang-9]
+        build_type: [Release, Debug]
+        technology: [OpenMP, MPI, HDF5]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y cmake build-essential libboost-all-dev libhdf5-dev libgmp-dev libtbb-dev
+          if [[ "${{ matrix.compiler }}" == gcc* ]]; then
+            sudo apt-get install -y ${{ matrix.compiler }} ${{ matrix.compiler }}-base;
+          elif [[ "${{ matrix.compiler }}" == clang* ]]; then
+            sudo apt-get install -y ${{ matrix.compiler }};
+          fi
+          if [[ "${{ matrix.technology }}" == "MPI" ]]; then
+            sudo apt-get install -y libopenmpi-dev openmpi-bin;
+          fi
+
+      - name: Configure CMake
+        run: |
+          mkdir -p build
+          cd build
+          cmake .. \
+            -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} \
+            -DSTART_OPENMP_ON=${{ matrix.technology == 'OpenMP' }} \
+            -DSTART_MPI_ON=${{ matrix.technology == 'MPI' }} \
+            -DHDF5_FOUND=${{ matrix.technology == 'HDF5' }}
+
+      - name: Build
+        run: |
+          cd build
+          make -j$(nproc)
+
+      - name: Run Tests
+        run: |
+          cd build
+          ctest --output-on-failure