Can make callbacks that can access the full lambda
machinery, while the same machinery is still usable
in C and from C, and thus in rust and lua, and from
rust and lua.
modified: docs/libraries/cpp_automatic_memory_management.md
The magic univeral lowest denominator C code, which can be used by
and make use of, higher level language constructs such as
lambdas, being
(**p)(p, ptrEvent);
Where p points at or into a blob that contains a pointer to
C calling convention code that knows how the blob is structured.
allowing us to structure it arbitarily, apart from information
that the event dispatcher needs to know.
