1) Added getters and setters to many objects that lacked them.
2) Introduce a parseLite method that is called even in "lazy parse" mode. This calculates the length of the message so children can be skipped when parsing a container object.
3) Full serialization for AddressMessage
4) Added a (huge, standalone) SpeedTest.
5) Add unit tests for the matrix of lazy parsing modes.
A bunch of review comments are added to the TODO list for completion after the patch series is checked in. This is to avoid large numbers of merge conflicts as later parts of the patch-series are committed.
1) Introduce partial support for caching the underlying byte arrays during message deserialization, so re-serialization can be skipped in the case where a message is not modified.
2) Add c'tors that allow a message to be configured to lazily parse on-demand.
Note that the getters/setters that make lazy parsing transparent are coming in future commits.
