Allow plotterparameters in beat exp plot command

So far it was not possible to specify a plotterparameter when producing
the experiment plots locally.

This merge request adds an option in the command line which allows users
to change the plotterparameter of each output plot.

Fixes #70
4 jobs for plotter-param-click-option in 9 minutes and 25 seconds (queued for 5 seconds)
Status Name Job ID Coverage
  Build
passed build_linux_36 #204757
docker-build

00:03:04

58.0%
passed build_linux_37 #204758
docker-build

00:02:58

58.0%
passed build_macosx_36 #204755
macosx

00:09:25

58.0%
passed build_macosx_37 #204756
macosx

00:09:10

58.0%