Resolve #3345071 "Pierre proposal"

Closes #3345071

added 7 commits

• 65db0d6a - 1 commit from branch project:8.x-2.x
• dee187e9 - ISSUE-3345071: Add initial complex setting type
• a85ad643 - ISSUE-3345071: Add initial provider
• e633b992 - From 'link_list' setting type to 'link'
• 4fd33c8e - Throwing InvalidArgumentException breaks patterns when not renderer with UI Patterns Settings
• 3ad83e14 - Add static helpers to LinksSettingType
• e159447f - Fix cache management

Compare with previous version

added 7 commits

• 8897fe51 - 1 commit from branch project:8.x-2.x
• 4eab4fa2 - ISSUE-3345071: Add initial complex setting type
• fddc0068 - ISSUE-3345071: Add initial provider
• 42001543 - From 'link_list' setting type to 'link'
• 82e17574 - Throwing InvalidArgumentException breaks patterns when not renderer with UI Patterns Settings
• fa827d95 - Add static helpers to LinksSettingType
• 30c516c9 - Fix cache management

Compare with previous version

merged