Integrate openpmd-scipp into the main API

.github/workflows/linux.yml

@@ -133,6 +133,7 @@ jobs:
         sudo apt install clang-15 cmake gfortran libhdf5-dev python3.11 python3.11-dev wget
         sudo .github/workflows/dependencies/install_spack
         python3.11 -m pip install numpy pandas
+        python -m pip install scipp plopp
         git clone -b v4.0.3 https://github.com/ToruNiina/toml11
         cmake -S toml11 -B build_toml11               \
           -DCMAKE_INSTALL_PREFIX=toml11_install \
@@ -235,6 +236,8 @@ jobs:
         python3 -m pip install -U pandas
         python3 -m pip install -U dask
         python3 -m pip install -U pyarrow
+        python3 -m pip install -U plopp
+        python3 -m pip install -U scipp
     - name: Build
       env: {CC: gcc-12, CXX: g++-12, CXXFLAGS: -Werror}
       run: |
@@ -305,7 +308,8 @@ jobs:
       run: |
         apk update
         apk add hdf5-dev
-        python3.10 -m pip install numpy h5py
+        python3.10 -m pip install numpy
+        python3.10 -m pip install h5py
     - name: Build
       env: {CXXFLAGS: -Werror}
       run: |

CMakeLists.txt

@@ -677,6 +677,8 @@ if(openPMD_HAVE_PYTHON)
         __init__.py DaskArray.py DaskDataFrame.py DataFrame.py
         ls/__init__.py   ls/__main__.py
         pipe/__init__.py pipe/__main__.py
+        scipp/__init__.py scipp/loader.py scipp/mesh_loader.py scipp/utils.py
+        ScippLazyInit.py
     )
 endif()
 
@@ -733,6 +735,7 @@ set(openPMD_PYTHON_EXAMPLE_NAMES
     11_particle_dataframe
     12_span_write
     13_write_dynamic_configuration
+    15_scipp_loader
 )
 
 if(openPMD_USE_INVASIVE_TESTS)