- the SFind functor has been simplified and now become a fully copyable functor
- added  tests for  the following  cases:
   * TMap with std::for_each (Full iteration: from the Begin up to the End)
   * TMap with std::for_each (Partial iteration: from the Begin up to the
     3rd element)
   * TMap with std::find_if
   * TMap with std::count_if
- cosmetic changes


git-svn-id: http://root.cern.ch/svn/root/trunk@23329 27541ba8-7e3a-0410-8455-c3a389f83636