Graceful max header size logic

[cadorn]

• Add maxHeaderSize option
• If size of reached stop sending more log messages
• If traversing an object and getting close to limit, do not traverse as deep in hope of keeping room for more log messages
• Object trim capability where objects can be encoded and then trimmed to a certain size to keep room for more log messages
• Keep track of encoded object sizes and associated classes and rank classes by size to assist in adding object filters
• Option to blacklist all classes and only show stub of first hidden object and ability to whitelist classes to traverse them.