ParticleContainer

[ax3l]

We will expose the ParticleContainer class next.

Since that class is templated and the basis for user-code derived classes, we will implement it similar to Array4 as a void make_ParticleContainer function.

Central methods and support classes that we are using from it to start with:

• https://github.com/ECP-WarpX/impactx/blob/development/src/particles/ImpactXParticleContainer.H
• https://github.com/ECP-WarpX/impactx/blob/development/src/particles/ImpactXParticleContainer.cpp

We will also add the __array_interface__ interface (#9) to the 1D SoA data, and have to think how we expose 1D AoS data (could be a tuple in the __array_interface__ data type).

Maybe we also just look for an equivalent protocol for Pandas Dataframes / cudf.