Lots of Macros...
Merge branch 'master' of https://github.com/iyzsong/RUtil2 into iyzsong-master
Merge
include path
Default template, change _ClassName namming method
Automatic constructor/destructor
Full String methods;
Need unit test
Convert
test/TestString: add more test

String_AllocLength should only accept size_t as Length
String_Equal[Chars] may return bool as result
String_EqualChars should accept const char * as Chars

NB. valgrind reports no leaks are possible