Version 1.0.4

- Added csf_port_attach() and csf_port_detach(), then deleted
csf_link_attach() and csf_link_detach().
- Deleted csfbr_attach() and csfbr_detach(), then added user and kernel
link IDs to parameters of csfbr_create().
- Deleted csf_net_attach() and csf_net_detach(), then added local link
ID to parameters of csf_net_create().
- Changed Windows remote CSF server to user-mode service.
- Added USB host and device simulation framework libraries and test
programs as sample code of CSF.