[NetworkBrowser] Improvements to default local sharenames

[prl]

When a share is created by using MENU>Setup>Network>Network browser, the share's local sharename data is initialised with exportname@hostname if the share is CIFS, and hostname if it is an NFS share.

In the CIFS case, "@" is not permitted in local share names, so the share setup screen has Local sharename initialised as exportnamehostname, without any separator.

The suggested improvement is to use hostname_exportname as the default local sharename for both CIFS and NFS, with exportname being the published share name for CIFS and the basename part of the exported directory for NFS (and "root" if the exported directory is "/").

[prl]

Fixed in NetworkBrowser in beyonwiz/enigma2-plugins.