add iOS project.
Add Caramel's iOS Project.
Fix: Move Configuration, DateTime and Random cpp files into Caramel directory.
Add Trace test.
- All trace macros use "##" before __VA_ARGS__.
Lexical::Integer use Meta::IntegralTypes to generate specialization of all types.
- Add Meta/IntegralTypes.h
- Add LexicalInteger test.
(minor) Improve comments in String.cpp