Augmented "wbinfo -m" to list additional information about the type, direction, and transitivty of trusts.
* added several helper functions to convert the trust_flags field in the
winbindd_tdc_domain to more useful administrator ideas of trust type, trust
direction, and trust transitivity.
* converted winbindd_list_trusted_domains() to enumerate the trusted domain
cache, instead of the domain list, and return additional trust information to
the calling process
* modified wbinfo to pretty print this additional trust information when a new
--verbose switch is given with -m. Thus "wbinfo -m" and "wbinfo -all-domains"
output as before, but "wbinfo --verbose -m" prints extra trust info.
* updated some comments and fixed typos
(This used to be commit
e7827bb6afa264c12ecdc0858f49707ca3d6104f)