[WIP] Modified h5 reader for LASY

[Paaaaarth]

This pull request includes significant updates to the lasy package, particularly focusing on the handling of OpenPMD profiles and improvements to the create_grid function. The changes aim to enhance functionality and improve code clarity.

Updates to OpenPMD Profile Handling:

• lasy/profiles/from_openpmd_profile.py: Removed the dependency on OpenPMDTimeSeries and replaced it with direct usage of openpmd_api. This change simplifies the process of reading laser field data from OpenPMD files.
• lasy/profiles/from_openpmd_profile.py: Refactored the FromOpenPMDProfile class to remove unused parameters and streamline the initialization process. The class now directly reads data using openpmd_api and handles different field dimensions ('rt' and 'xyt').

Improvements to Utility Functions:

• lasy/utils/laser_utils.py: Modified the create_grid function to use np.allclose instead of np.all for comparing grid axes. This change ensures that the comparisons are tolerant to small numerical differences, improving robustness.

Available functionality:

• Reads LASY files (With single mode)
• Reads Wake-T files
• Reads FBPIC files

[MaxThevenet]

This is still WIP, right?
Can the issues addressed in #356 also be fixed as part of this PR?

[Paaaaarth]

This is still WIP, right? Can the issues addressed in #356 also be fixed as part of this PR?

Yes It is still WIP. I would try to address the issues in #356 and incorporate the fixes within this PR.