There are two distinctive type sets in AMQP, the basic AMQP types
and then the superset of Table value types. This commit attempts to
make that distinction more clear by the addition of a Table class.
Basically, AMQP value type read/write support is left in Frame for the
time being, while table value field read/write support has been moved
to the Table class. Also, a number of type differences exist between
the spec and rabbitmq's binary parser (noted in the errata page) which
were not previously honored.
Matt Broadstone