Opt out polts and error in output

[Albert-biorem]

When aligning multiple times is a bit bothersome to see the plots of the alignment multiple times, so a variable "display" that is default True and can indicate if the user wants the output can be useful, in my fork of the project i implemented, also, i have implemented that the values from the errors can be outputted as they can be useful to compare hyperparametes, I can attach the file in my fork of how I implemented I know that is a very unsubstantial change but i found it very necessary, the changes have only been made in LDDMM as is the function i used