shorthand notation for paramsets - the general issue

[berndbischl]

1. our current way of specifying params is very verbose. something shorter might be useful for applications.

2. the PCS format might be a nice idea. it is string based, and we could even parse PCS files if we implement a parser

it is defined here:
http://aclib.net/cssc2014/pcs-format.pdf

3. i made quite a lot of progress my writing my parser with the rly package
   a PR is here Parser for PCS format #155

[berndbischl]

if we finish this, we should also allow to export sets to PCS string format

[mb706]

There is also this.

[mb706]

closed by #301 (i.e. ps() shortcuts)?

[be-marc]

closed by #301 (i.e. ps() shortcuts)?

Yes