Hide certain fields from users

[saggu]

Fields like, website, city which we use internally use, should be hidden from the users in myDIG.

They should in the myDIG interface so that users can change their appearance, but they cannot be deleted and no KG behavior property can be changed. The reserved fields should not appear in Landmark.

We should add the following attribute to fields:

• show in Landmark: boolean

In addition, we should have a list of System Fields which users cannot delete, and cannot change the type. Users can edit any of the other attributes. The following are system fields:

• city
• city_name
• state
• state_code
• country
• website

In addition, city and website should have show_in_landmark = false