* Add support for output arguments accessed by * and **
* Add ArgT and ArgQ, the macro JT (journal traits) to provide a generic approach to disambiguate definitions for value, reference and pointer arguments
* Add support for linked arguments
* Recursive Cpp::define() for ArgLinkT<> and ArgT<>
* Reference to pointer arguments now defer processing to the pointer argument implementation, rendering define overloads for pointer to custom types redundant
* Journal non-linked pointers to opaque data now using their actual addresses cast with reinterpret_cast<>
* Remove links to this pointers when emitting object destructor calls
* Remove Data::key
* Add Data::type to allow different types of initialization
* Simplify ArgLinkT
* Add ReturnLinkT and JOURNAL_[METHOD|FUNCTION]_RETURN_LINK
* Remove OutputT
* Add JOURNAL_TYPE_NAME macro
* Add Journal::Cpp casts
* Fix a bug where define(..., float) was outputting invalid float constants
* Improve the comment on Journal::Filename