Search results can be shown as a tree

[antoineatstariongroup]

Prerequisites

• I have written a descriptive issue title
• I have verified that I am running the latest version of the UI-DSM
• I have searched open and closed issues to ensure it has not already been reported

Description

For now, results are displayed as a flat list with some grouping. Results could be displayed as a tree since the path is already computed.
For that, move the path from a string to a collection of string to compute the tree on the ui

Steps to Reproduce

System Configuration

• UI-DSM version:
  • UI-DSM:
  • Other:
• Environment (Operating system, version and so on):
• .NET Framework version:
• Additional information: