Fix order of GEC cuts, reading from RawBanks implies insert of GECFilter upfront

@sponce , as far as i can tell the current TDR branch applies GEC on RawBanks, so no need to append the GECFilter, but actually insert at position 0 is better. I will double check if this can be merged to master instead of TDR. Also , i prepared a MR to MiniBrunel Configuarables to fix the way the ParallelSequence is generated.