add command to list shares

[icewind1991]

Adds command occ share:list to show all shares on the system with a number of filtering options.

Obvious room for improvements in the performance of querying the shares and increasing the information shown and the number of filters available. But it should still be useful in it's current state.

[kesselb]

Nice, Thank you 👍

The command is failing on my remote share from bob to alice@https://server30.internal with

occ share:list 
An unhandled exception has been thrown:
TypeError: OC\Share20\Share::getStatus(): Return value must be of type int, null returned in /var/www/html/lib/private/Share20/Share.php:349
Stack trace:
#0 /var/www/html/apps/files_sharing/lib/Command/ListShares.php(88): OC\Share20\Share->getStatus()
#1 [internal function]: OCA\Files_Sharing\Command\ListShares->OCA\Files_Sharing\Command\{closure}(Object(OC\Share20\Share))
#2 /var/www/html/apps/files_sharing/lib/Command/ListShares.php(78): array_map(Object(Closure), Array)
#3 /var/www/html/3rdparty/symfony/console/Command/Command.php(326): OCA\Files_Sharing\Command\ListShares->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#4 /var/www/html/core/Command/Base.php(161): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#5 /var/www/html/3rdparty/symfony/console/Application.php(1078): OC\Core\Command\Base->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#6 /var/www/html/3rdparty/symfony/console/Application.php(324): Symfony\Component\Console\Application->doRunCommand(Object(OCA\Files_Sharing\Command\ListShares), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#7 /var/www/html/3rdparty/symfony/console/Application.php(175): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#8 /var/www/html/lib/private/Console/Application.php(187): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#9 /var/www/html/console.php(87): OC\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput))
#10 /var/www/html/occ(33): require_once('/var/www/html/c...')
#11 {main}

[icewind1991]

Nice, Thank you 👍

The command is failing on my remote share from bob to alice@https://server30.internal with

Fixed

[skjnldsv]

Please write documentation on the occ page https://github.com/nextcloud/documentation/edit/master/admin_manual/occ_command.rst