Mva injector update
This MR makes sure that all trees from the inputs files are copied into the target root files even if they are not used for NN evaluation.
It also cleans up the output by suppressing warnings that are meant for the training only.
This MR makes sure that all trees from the inputs files are copied into the target root files even if they are not used for NN evaluation.
It also cleans up the output by suppressing warnings that are meant for the training only.