Filter shares based on type in OCS

[ishank011]

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[update-docs]

Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would create a changelog item based on your changes.

[ishank011]

@kulmann do we expect a list to be passed in the share_types query? Because the only usage I see is from the public links tab which sends /ocs/v2.php/apps/files_sharing//api/v1/shares?format=json&share_types=3

[kulmann]

@ishank011 found this in oc10: https://github.com/owncloud/core/blob/799f107301e9835a46c3d1855f9a1a56f6706971/apps/files_sharing/js/sharedfilelist.js#L238 so it looks like it's supposed to be a comma separated list of share_types.

[ishank011]

@kulmann perfect, thanks! Will change the code to handle this.