Initial version that should have enough of the plumbing to produce
a working adapter. Memory test is showing 8 bytes held after one
of the tests so I'm going to revisit that later. But basic
functionality is there going by the unit tests.
Generally, opaque data operations are expected to be over 'void *' and have
now converted interfaces to do that. Update() method honors millisecond limit to dwell
time. Might want to homologate the millis/uSecs mix later....
Monty Brandenberg