Addition of PRW to IDPVM
This MR introduces the possibility to run pileup reweighting within IDPVM. This will allow immediate comparison between data and mc samples for tracking quantities.
The implementation works with mc23 samples for which the setup of PRW is simplified thanks to the introduction of common PRW files. The attached plot shows the impact on the actual mu distribution when running over 1000 ttbar mc23a events (black no prw, red prw).
Credits to @tstreble for the help with the implementation, tagging @jburzyns @skadir