Add sshfs to the autofs role

[sfloess]

Need to support sshfs in the autofs role. Here is a good document.

Example auto.[server]:

mnt1   -fstype=fuse,allow_other,port=1234 :sshfs\#root@company.com\:/the/dir1
mnt2   -fstype=fuse,allow_other,port=1234 :sshfs\#root@company.com\:/dir2