Dynamic class/method/property register

unlike other C++ framework use static template specialization to achieve reflection, ZFFramework use fully dynamic way to achieve reflection, this may cause less performance, but are much more convenient for high level app coding

example:

ZFLuaExecute(
    "ZFDynamic()"
    ":classBegin('MyClass', 'ZFUIView')"
    "    :property(ZFTypeId_zfstring(), 'myProp')"
    ":classEnd()"
    );

as you can see, we are able to register class/method/property in script language
further more, the registered contents can be combined with all other features in C++ world:

zfauto obj = ZFClass::classForName("MyClass")->newInstance();
obj->invoke("myProp", zfobj<v_zfstring>("myValue"));
ZFObjectToXml(ZFOutputDefault(), obj);