Remove chat and latency examples

The chat and latency examples already have their own .cabal files
which are needed to build them.  The examples.cabal failed to build
them.  So rather than confuse people with a broken build, don't try to
build them.
Move examples.cabal into binary example

As the examples.cabal is not needed anymore, move it into the binary
example.  Raneme binary example binary/project name to not conflict
with the 'binary' library on Hackage.