Send information about albums to the client

[oparoz]

Description

This is the first step to solve #557 and will help with a lot of current features like upload, drag n'drop and sharing.

What it does is send a bit more meta data about each file, but a lot more about sub-albums (fileId, mTime, etag, size, sharedWithUser, owner, freeSpace, permissions).

The change is quite large, so test thoroughly.

Tested on

• Windows/Firefox
• Windows/Chrome

Test plan

Setup

• Blacklist some albums
• Have some deeply nested albums

Actions

• Test both the logged-in and public side as internal paths are different
• Navigate to and out of folders
• Upload files and folder
• Move files and folder around

Tech review

• Instead of sending a list of nodes and letting the client parse it to extract albums and files, the backend sends a array for each
• $privacyChecker has been renamed $ignoreAlbum as the blacklist feature is just a filter for the view
• The backend doesn't let the client know if the location has changed any more. The client simply compares the path it's sent with the one it receives
• Every answer to a request for files will let the client know if the content has changed (bool)
• item-source is made available to share.js

Check list

• Code is properly documented
• Commits have been squashed
• Tests (unit, integration, api and/or acceptance) are included
• Documentation (manuals or wiki) has been updated or is not required

Reviewers

@jospoortvliet @setnes @deMattin @arkascha @elpraga @sualko @Bugsbane @mmattel @tahaalibra @viraj96 @imjalpreet @mbtamuli @rahulgoyal030