Autotiling Versions Save

Attempt to fix PyPI workflow. #52

New arguments added by @JoseConseco in #44:

  -sw SPLITWIDTH, --splitwidth SPLITWIDTH
                        set the width of the vertical split (as factor);
                        default: 1.0;
  -sh SPLITHEIGHT, --splitheight SPLITHEIGHT
                        set the height of the horizontal split (as factor);
                        default: 1.0;
  -sr SPLITRATIO, --splitratio SPLITRATIO
                        Split direction ratio - based on window height/width;
                        default: 1;try "1.61", for golden ratio - window has
                        to be 61% wider for left/right split; default: 1.0;

• added -l LIMIT, --limit LIMIT argument; #41 by @Syphdias

It limits how deep will autotiling work; try -l 2, if you like master-stack layouts; default value is 0 (no limit); avoid the 1 value, that will actually spoil autotiling. Below the level you specified, stacking and tabbed layout will behave well again.

Added a line to remove workspaces tmp file, if no --workspaces specified. The simple txt file stores the --workspaces flag content, to let the panel know which workspaces to mark with the "a" letter.

This will only be useful for use the script with nwg-panel, but not with full nwg-shell. The latter uses its own version of the autotiling script, which also allows just single instance, and can be started with exec_always. I decided not to include it into this version, due to the additional psutil dependency.

Added publish to PYPI workflow #39 by @dpgraham4401 - closes #38

• Fixed manual switching between layouts, by changing event subscription to WINDOW and MODE - @ErikReider #32;
• changing event subscription has already been the objective of several pull request. To avoid doing this again and again, from now on it's possible to specify them in the -e | --events argument.

Added Event.BINDING subscription to resolve #26.

nwg-panel integration: args.workspaces saved to /tmp/autotiling on start

• added --workspaces argument to restrict autotiling to certain workspaces @riscie
• code formatting and arguments cleanup

• added --version argument @nschloe
• allowed autotiling to be run as a script directly @Lqp1