As a user creating a CO or registering a service, I'd like a suggestion for the short name

[FlorisFokkinga]

• As an Org Admin, I want to use the Org API to create a CO without specificying a short_name, because it is hard for me to autogenerate a name that is both human readable and unique #1080
  introduces auto generation of short names in the API.

Please use the same function for helping users pick a short name for creating a CO and registering a service.

• Start with an empty form, empty name and empty short name
• Once a name is entered, place the suggested short name in the field as text/contents
• The users can edit/change the short name
• Once the short name has been edited by the user, don't suggest any changes, unless the field is empty

[FlorisFokkinga]

• Suggesting a short name doesn't work for registering or creating a service.
• Disable this for editing collaborations so platform admins don't change the short name by accident. For services, it seems already disabled.
• Also fix the bug that a CO admin and service admin can change the short name by removing disabled="" from its field in the edit form.

[baszoetekouw]

the third issue here is more generic; I think this bug is present in other places, too. We should think of a way that we can more easily verify access right to specific fields (read and write) in SBS.

[baszoetekouw]

Tested