dwpage: Detect that workingfile is a directory

And provide meaningful error message instead of PHP warning.

Fixes #4461

fix listing of plugin components

Plugins may have one main component of a type or they might have
multiple of the same type in a subdirectory.

Sometimes they may have both. This is often the case f

fix listing of plugin components

Plugins may have one main component of a type or they might have
multiple of the same type in a subdirectory.

Sometimes they may have both. This is often the case for organically
grown plugin, commonly with helper classes where a helper.php exists
first only to be extended by helper/*.php files later.

This patch fixes the listing of plugin(components) by type in the plugin
controller.

It also adjusts bin/plugin.php to handle plugin CLI components.

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Use str_starts_with/str_ends_with

code style: line breaks

code style: operator spacing

Rector to rename print to echo calls

coding style: control flow whitespaces

coding style: function call spacing

codestyle adjustments: function declaration braces/spaces

codestyle adjustments: class declaration braces

Apply rector fixes to bin and toplevel

do no load disabled plugins in /bin/plugin.php

move resolvers into File namespace

replace deprecated function calls

Replaces the use of resolve_pageid() and resolve_mediaid() with the
proper class invocations

dwpage: output meta data as JSON

json shows the same nested data but is easier to process by other tools

dwpage: rename gmeta into getmeta

dwpage.php: add an option to get metadata

This adds an option to ./bin/dwpage.php, to display metadata about a
page. This is useful in maintenance shell scripts, and debugging plugins.
There is no a

dwpage.php: add an option to get metadata

This adds an option to ./bin/dwpage.php, to display metadata about a
page. This is useful in maintenance shell scripts, and debugging plugins.
There is no ability to write metadata, only read them.

./bin/dwpage.php -u <user> gmeta [page] <meta tag>

where <meta tag> can be "date modified" (in quotes) or "last_change date"
an empty <meta tag> returns all metadata.

Signed-off-by: Robin Getz <robin.getz@analog.com>

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Changes according to revisions in https://github.com/moisesbr-dw/dokuwiki/pull/2

Many minor details and use of Sort::xyz() instead of intl_xyz() in files outside the "inc" folder.

use envvars in shebang