Wrapper functions for 1D plots and kwargs optimization

[nikhilbhavikatti]

[x] Add wrapper functions that support direct visualization for 1D plots
[x] Optimization of usage of kwargs

Resolves issues #10 and #23

[marinaevers]

I don't think, this resolves #23 fully because the arguments also need to be considered in the higher-dimensional plots. We could merge it as it is now (after fixing the comments below), but we should keep #23 open.