Update appinfo and fix User backend OC_User_* not found

[VicDeo]

Fixes #9

[phil-davis]

This gets rid of errors in the "unit tests" where I am getting CI going in another branch.
They used to give errors:

Runtime:       PHP 7.1.32-1+ubuntu18.04.1+deb.sury.org+1 with Xdebug 2.7.2
Configuration: /home/phil/git/owncloud/core/apps-external/user_external/phpunit.xml

EEE                                                                 3 / 3 (100%)

Time: 240 ms, Memory: 22.00MB

There were 3 errors:

1) Test_User_FTP::testLogin
Error: Class 'OC_User_FTP' not found

/home/phil/git/owncloud/core/apps-external/user_external/tests/unit/ftpTest.php:27

2) Test_User_Imap::testLogin
Error: Class 'OC_User_IMAP' not found

/home/phil/git/owncloud/core/apps-external/user_external/tests/unit/imapTest.php:28

3) Test_User_SMB::testLogin
Error: Class 'OC_User_SMB' not found

/home/phil/git/owncloud/core/apps-external/user_external/tests/unit/smbTest.php:28

ERRORS!
Tests: 3, Assertions: 0, Errors: 3.

Now I get:

Runtime:       PHP 7.1.32-1+ubuntu18.04.1+deb.sury.org+1 with Xdebug 2.7.2
Configuration: /home/phil/git/owncloud/core/apps-external/user_external/phpunit.xml

FFsh: 1: smbclient: not found
F                                                                 3 / 3 (100%)

Time: 2.27 seconds, Memory: 22.00MB

There were 3 failures:

1) Test_User_FTP::testLogin
Failed asserting that false matches expected 'test'.

/home/phil/git/owncloud/core/apps-external/user_external/tests/unit/ftpTest.php:32

2) Test_User_Imap::testLogin
Failed asserting that false matches expected 'foo'.

/home/phil/git/owncloud/core/apps-external/user_external/tests/unit/imapTest.php:33

3) Test_User_SMB::testLogin
Your test case is not allowed to access the database.

which is "better" - now the "unit test" issue is just because the tests are currently relying on the various back-ends being available.

[VicDeo]

@phil-davis These are NOT unit tests - they depend on FTP/SMB server and won't pass until the env has the servers

[phil-davis]

@phil-davis These are NOT unit tests - they depend on FTP/SMB server and won't pass until the env has the servers

I realise that - they are close to being acceptance tests, since they need real external services.

So someone needs to decide how we proceed here, e.g.

• delete these "unit" tests
• make some "ordinary" unit tests
• make some acceptance tests (that have the real backend services attached...)

[phil-davis]

This is "a good thing".
The state of the "unit" tests that are in this app is a different issue that needs to be sorted out separately from the fix/workaround here.