Adds UI to the report to make it eaiser to spot sources.

[KevinJump]

Feature #597

One for @NikRimington 😃

Adds some labels to the report page so you can see where things are coming from when using roots.

Adds some text to the details page to also tell you where a thing is importing from.

At the moment the labels are styled based on the folder name

so we have styles for root and combined, we are not styling v9 as that is the default that most people will see.

(Combined is the special path, returned when files have been merged by the uSync roots processes)

if you wanted your own-coloured labels you would have to have your own backoffice stylesheet with them in.

e.g

.usync-path-name.MyRootFolder{
    background-color: #27b171;
    color: white;
}