Ftrack: Private project server actions

[iLLiCiTiT]

Issue

Ftrack event server may not have access to private projects which may be confusing for project manager and it may crash few event handlers.

Changes

• server actions should not crash if entities are not queried from private project
• added action Missing permissions which is shown only if someone tries to show actions on private project for which server api key does not have permissions

Notes

If you don't like messages or titles in new action don't ask and modify :)

How to test

Easiest is with using api API key.

• create new api API key in ftrack (with API role)
  
• run ftrack event server using the api key
• create private project and try to show actions on it
• you should see action Missing permissions
  

[jakubjezek001]

works well