Delete unnecessary params in Samples Record-Save. Write output in runmcmc_record_kernel (maybe iterations)

Pass some parameters to FIT instead of read from options to do it more general and use it in RUBIX. Delete unnecessary params in Samples Save

Deleted bedpostx_multigpu_SGE because now the MultiGPU version in SGE will be controlled by fsl_sub and NGPU parameter in bedpostx_gpu