�� Rector and PHPCS fixes

fix(info): read parser modes from the registry, not the deprecated global

The info plugin's ~~INFO:syntaxtypes~~ read the $PARSER_MODES global
directly. Since the mode taxonomy moved into ModeRegist

fix(info): read parser modes from the registry, not the deprecated global

The info plugin's ~~INFO:syntaxtypes~~ read the $PARSER_MODES global
directly. Since the mode taxonomy moved into ModeRegistry (c8dd1b9d2),
that global is only populated as a side effect of a parse, so on a warm
instruction cache with no parse in the request it is unset and the
syntax-types table renders empty. ~~INFO:syntaxmodes~~ used the
deprecated p_get_parsermodes(), logging a deprecation on every render.

Both now build a ModeRegistry and read the categories and modes from it
directly, independent of parse or cache state.

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�� Rector and PHPCS fixes

use new ModeRegistry constant in info plugin

Basically all syntax plugins could now return the constants instead of
plain string, but the info plugin is the only syntax plugin we have
directly in co

use new ModeRegistry constant in info plugin

Basically all syntax plugins could now return the constants instead of
plain string, but the info plugin is the only syntax plugin we have
directly in core.

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updated rector and applied it

code style: line breaks

recover comments in list

Apply rector renames

Apply rector fixes to the rest of lib/plugin

info plugin: reuse render methods

This kidn of cleanup should be added for the other methods as well,
making it possible to export a info data to ODT for example.

info plugin: add hooks method

This lists all currently registered action hook handlers. Useful for
when debugging DokuWiki behaviour likely to be influenced by a plugin
and it's not clear which plug

info plugin: add hooks method

This lists all currently registered action hook handlers. Useful for
when debugging DokuWiki behaviour likely to be influenced by a plugin
and it's not clear which plugin might interfere.

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info plugin minor code cleanup

add datetime option to info plugin

It simply displays the time of the last render() call. This is useful
for cache debugging

Fix PHP 7.3 deprecations in lib/ directory.

PSR-2 compatibility for info plugin

visibility declarations in plugins

remove DOKU_INC checks

There is no need for this check, since these files should not have any
main code that is executed on direct call.

Fixes PSR1.Files.SideEffects.FoundWithSymbols

more PHPDocs, unused var, small bit code reformatting

more scrutinizer issue improvements

scrutinizer documentations issues

remove '&' from object parameters, PHP5 style not E_ALL

Info plugin: allow xhtml renders to not to be an xhtml renderer

Renderers that set the format to xhtml don't necessarily inherit from
Doku_Renderer_xhtml, this reverts a prior change that introduced

Info plugin: allow xhtml renders to not to be an xhtml renderer

Renderers that set the format to xhtml don't necessarily inherit from
Doku_Renderer_xhtml, this reverts a prior change that introduced the
stricter parameter type.

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fix signature mail unittest, and improve some signatures info plugin

Fix PHP strict messages

Put syntax modes in a table layout, sort numbers in rowspans. Implements FS#2516