PoC: Runtime Reflection in D on C++ code

[Laeeth Isharc]

It's rough and ready - no proper build and not at all 
well-tested.  But it will definitely work in time since it uses 
the fork of libcling for cppyy that's used at scale for CERN. 
cppyy generates python bindings for C++ code on the fly using the 
cling interpreter (it handles templates by doing the 
specialisation at python runtime).

I'm a bit short of time, so putting this out here in case it's 
useful for anyone - might be some months before I get to look at 
it again.

https://github.com/kaleidicassociates/cpp-reflect-d

ROOT:
https://github.com/root-project/root

https://cppyy.readthedocs.io/en/latest/

http://wlav.web.cern.ch/wlav/Cppyy_LavrijsenDutta_PyHPC16.pdf