reformatting at top level

reformat /lib/exe/ folder

reformat lib/exe/mediamanager.php

recover comments in list

manual code style fix

coding style: function call spacing

coding style: loop declaration spacing

coding style: PSR12.Classes.ClassInstantiation.MissingParentheses

address issues mention in PR#4045

prepare for merging

removed WIP marker and changed the branch to master

codestyle adjustments: PHP constant casing

codestyle adjustments: EOF new lines

codestyle adjustments: function declaration braces/spaces

codestyle adjustments: class declaration braces

codestyle adjustments: function argument spacing

Apply rector renames

define custom renames

Automatically rename occurances of deprecated functions and classes.
These renames will come in even more handy when rector is applied to 3rd
party plugins.

workflow improvements

* make bot PRs more easy to spot
* better PR message for autofix
* no more checkstyle to annotation

comment fix in install.php

Apply rector fixes to bin and toplevel

Apply remaining rector fixes to lib

apply PSR-12 constant visibility rule

PSR-12 says constants need their visibility declared from PHP 7.1
onwards

codestyle fixes

Apply rector fixes to lib/tpl/dokuwiki

Apply rector fixes to the rest of lib/plugin