[bind10-dev] minor doxygen documentation needs for resolver.h and asiolink.h

[Jeremy C. Reed]

In src/bin/resolver/resolver.h, around line 68, query_message and 
answer_message need to be documented for setTimeouts.

and around line 149: query_timeout, client_timeout, and lookup_timeout 
need to be documented for setTimeouts.

In src/lib/asiolink/asiolink.h around line 469, answer_message needs to 
be documented for the operator function.

and near line 549, query_timeout, client_timeout, and lookup_timeout 
need to be documented for RecursiveQuery.