Topic/arg parse atrib order

[bernt-matthias]

if argument is given then properly extract flag and identifier:

• flag equal to argument
• identifier: argument wo leading dashes and - replaced by _

some reordering of attributes for params:

• it is nicer if its name, argument, type, ...
• mostly dictated by the order of the function parameters using that dicts are ordered by insertion order nowadays
• only type and name (which are computed) need a hacky special treatment

actually generate CLI for conditionals, sections and repeats.

• A small improvement, even if the cheetah is not yet correct.

[bernt-matthias]

Hey @hexylena this one is finished from my side. Release is not needed (but does not hurt if its automatic). Once merged I would finish the other PR.

[hexylena]

Awesome @bernt-matthias! This looks like a nice improvement.

If you want a release just edit the changelog / tag a new version. (feel free to do without a PR.)