Develop - #6

…are defined

…lation

… POVRAY.

…ints

…ined behaviour in statistics checkpoints

… output file to be used for the simulation. The default remains "output".

Added an optional --output-file command line argument, to specify the…

…se sliced atoms list

…to develop

…stics

…ters

Remove erroneous call of MPI synchronisation in the spin accumulation
module causing spin torque to be overestimated.

Added <cstdint> libraries

…to develop

  Integration test: output header gained a githash line, shifting data
  rows down by one — increment the line-skip counter from 982 to 983.

  Unit test: A/m → internal unit (J/T/ų) conversion factor is 1e-30,
  not 1.0; update the expected value to match the correct physics.

…tion and updated data structures for sublattice magnetisation calculation

…h multiple sublattices

…fast laser-induced currents and delay for electrical pulses

…t, giving infinite current.

…res such as domain walls, skyrmions etc

…ult for new modules

…ased on particle size and spacing

…i media

…coping of shared variables and functions

…ntributors. Fixed makefile to correctly include the githash at compile time.

ADD fmr-field calculation in CUDA