[vcpkg baseline][rest-rpc] Skip check in baseline

[JackBoosY]

Because the msgpack in rest-rpc is very different from the header file of port msgpack, disable the check of rest-rpc in the baseline and add error message to notify users.
Error log:

Installing package rest-rpc[core]:x86-windows...
The following files are already installed in F:/vcpkg/installed/x86-windows and are in conflict with rest-rpc:x86-windows

Installed by msgpack:x86-windows
    include/msgpack.h
    include/msgpack.hpp
    include/msgpack/adaptor/adaptor_base.hpp
    include/msgpack/adaptor/adaptor_base_decl.hpp
    include/msgpack/adaptor/array_ref.hpp
    include/msgpack/adaptor/array_ref_decl.hpp
    include/msgpack/adaptor/bool.hpp
    include/msgpack/adaptor/boost/fusion.hpp
    include/msgpack/adaptor/boost/msgpack_variant.hpp
    include/msgpack/adaptor/boost/msgpack_variant_decl.hpp
    include/msgpack/adaptor/boost/optional.hpp
...