pixel aging at  300 / 500 fb-1 updated

@fratnikov, @mark-grimes  This PR is replacing PR #4844 which should be closed - It has no impact on the present MC production for the TP (this is updating some of the pixel aging scenarios whereas for the TP the pixel is not aged, so not impact) - no emergency, you can integrate it at your convenance.

@atricomi, @mmusich,  @emiglior  : I kept all the scenarios, but changing the 300 and 500 with your values, thanks.