[Cpptool-develop] New utilities class CStringView

[Baptiste L. <gai...@fr...>]

    I've added a new utility class: CStringView (in xtl/CStringView.h).
Tests are in rftaparser. It's basically a object that take a start and end
const char *pointer to represent a string. The string is not copied (it's to
be use for parsing). A random access and reverse random access iterator are
also provided. Notes that the iterators are also enumerators: they know the
string they are iterating over.

    The classes probably still need a few adjustement, but I've already used
it successfully to refactor CaseStatementParser.

    This should enable a few IntroduceParameterObject refactored. It should
also be possible to extract some of the mini-parser present in Parser and
made them more generic. This has already been done for a few (see
ParserTools.h).

    Baptiste.