Add Parsec icon to Resana mountpoint directories

[mmmarcos]

On Windows, workspaces are mounted into the following directories:

• HOME/Resana Secure/<regular_workspace>
• HOME/<personal_workspace> (i.e. HOME/Drive)

It should be nice to display the Parsec icon for this directories (much like the Windows special folders Desktop, Pictures, Music, etc.). This can probably be done by tweaking the Windows Registry during Resana Secure installation.

See #96
See #207

[TimeEngineer]

See:
https://learn.microsoft.com/en-us/windows/win32/shell/how-to-customize-folders-with-desktop-ini
https://www.groovypost.com/explainer/what-is-desktop-ini-on-windows
Every folder has a desktop.ini file hidden, so we can modify this file when a workspace is mounted

[mmmarcos]

@TimeEngineer Yes! that will be useful for the Resana Secure directory because the file would be outside the workspaces:

• HOME/Resana Secure/Desktop.ini <-- OK, outside the workspaces
• HOME/Resana Secure/alice_workspace/ <-- workspace
• HOME/Resana Secure/bob_workspace/ <-- workspace

However, the "personal" workspace is different because the Desktop.ini file would need to be inside the workspace:

• HOME/Mon_Drive_Sec/Desktop.ini

The implementation seems complicated because the code (WinFSPOperations?) would need to check if the path being read contains Desktop.ini AND it is at the root directory, and if that is the case return a fake file pointer to the file with the required contents.

If its possible tweaking the Window's Registry, it seems a better approach because it does not require to add or test a special case in the mountpoint code.