Add isAccessible property to FieldDto for controlling field visibility

[oleg-andreyev]

This PR is closely related to #7031 a feature that we're doing internally and may be useful for community (when we'll finish, we'll create PR)

• Added isAccessible property to FieldDto with default value true
• Added markAsInaccessible() method to mark fields as inaccessible
• Added isAccessible() method to check field accessibility
• Updated AbstractCrudController to pass fields to index template
• Updated index template to filter fields by accessibility and show lock icon for inaccessible fields

[Seb33300]

Hi @oleg-andreyev,
What is the purpose to mark a field as inaccessible?
Can you share an example of how to use and when it's useful?

[oleg-andreyev]

@Seb33300 we've added based ACL on top of EA, so we can control if user can see it:

• Entity
• Entity.id
• Entity:field
• Entity:field.id

If entity is blocked, entire CRUD is blocked
if entity.id is blocked, only one record is blocked
if entity:field is blocked only one field from CRUD is blocked, thus no needs to show it in header.
if entity:field.id is blocked only one field for one entity is blocked, show only "lock" icon.