ADAPT_STRUCT_NAMED macros supporting type deduction

This pull-request continues the work of adding type deduction support to the existing ADAPT* macros, and rework a bit the macros proposed in pull-requests #9 & #10 to handle the special case of adapted struct as views.

This contains  the ADAPT_STRUCT_NAMED macros capable of deducing type and there related documentation and unit-tests.


With these changes all tests pass on llvm/clang, however I'm wondering if the changes are correct to handle proxied object, because I cleaned a bit and removed the specific ADAPT_STRUCT_NAMED_FILLERs macros and now use the PREFIX and IS_VIEW flag to determine how the field have to be accessed in such a case. Is this the right usage for the PREFIX, or was something else thought before ?

Thank you for the time you invest reviewing my little steps,
Cheers,