Add possibility for normal users to view script logs

[bugy]

At the moment, script logs are available for admins only. So sometimes (e.g. #230 #178) admin access is given to everyone just to view the logs

Since the introduction of #127 feature, admin access should be used only for real admins, because they will have access to script and configuration internals.

To keep the possibility for users to read logs, after making them non-admins, there should be a feature in the main interface to view logs (history).
By default, it should allow users to view their own executions.
And there should be a possibility to give some users access to all logs

[bugy]

Done, now all the users would be able to see their own execution history

Admins will be able to see full history (own execution and of other users)

Or you can give full history access, without admin rights:

  "access": {
    "full_history": [
      "user1", 'user2", "@my_group"
    ]
  }

Those users will see the full history in the normal user interface, but won't be able to access the admin page