Draft: Implementation of the dynamic calibration

This MR implements the dynamic calibration application which is currently exclusive to Jpp.

src/hdf5/hdf5.jl

-struct H5CompoundDatasetCache{T}
+abstract type AbstractH5Dataset end
+
+struct H5CompoundDatasetCache{T} <: AbstractH5Dataset
     buffer::Vector{T}
     size::Int
 end
@@ -36,6 +38,8 @@ function Base.flush(d::H5CompoundDataset; nolock=false)
     d
 end
 
+struct H5SplitDataset{T} end
+
 """
 
 A wrapper for an HDF5 file used in KM3NeT.