Internal functions start with _underscore now, added -- after xdotool
commands, replaced infinite loop in nowm_main with sleep infinity

This commit is mostly to prepare for bigger changes and might be skipped
by now

Now all files that can/should be installed are placed in src/ directory.
Added nowm.desktop file. Made some changes to main executable

This commit should NOW be merged right now

Updated README and package.json files

Moved files in examples/ to examples/hotkeys/ to differentiate from
other example files which will be added soon. NoWM functions move and
resize renamed to move_absolute and resize_absolute accordingly, now
functions move and resize detect what you want based on arguments you
pass. Using + or - before numbers makes it relative, otherwise absolute

Todo update man page

Added new sections `raise`, `move_absolute` and `resize_absolute`.
Changed content inside `logout`, `move` and `resize`. Added line break
in sections `close`, `kill` and `quit`