[FIX] Allow more paths in CFileUtils::RemoteAccessAllowed

As found by @Voyager1 there's some more path that should be allowed since they are used by addons / remotes or internally.
Perhaps more are needed, and perhaps a way to differentiate UPNP / Remote JSON / Addon JSON is needed.

@jmarshallnz and @Montellese for choices / feedback on the needed paths