New predefined JLD2 checkpointing

[aelligp]

"""
    checkpointing_particles(dst, particles, phases, phase_ratios; chain=nothing, t=nothing, dt=nothing, particle_args=nothing)

Save the state of particles and related data to a checkpoint file in a jld2 format.


# Arguments
- `dst`: The destination directory where the checkpoint file will be saved.
- `particles::AbstractArray`: The array of particles to be saved.
- `phases::AbstractArray`: The array of phases associated with the particles.
- `phase_ratios::AbstractArray`: The array of phase ratios.
- `fname::String`: The name of the checkpoint file.

## Keyword Arguments
- `chain`: The chain data to be saved. If nothing is stated, the default is `nothing`.
- `t`: The current time to be saved. If nothing is stated, the default is `nothing`.
- `dt`: The timestep to be saved. If nothing is stated, the default is `nothing`.
- `particle_args::Union{Nothing, AbstractArray}`: Additional particle arguments to be saved. If nothing is stated, the default is `nothing`.
"""

The current file is in src/IO/JLD2.jl without an additional module. However, one could do the same as in JustRelax.jl with DataIO

[albert-de-montserrat]

Thanks a lot! Will need to merge from main after #193 is merged