#2760 build: Add cpplint filter to allow unapproved C++11 header

[Hans Nordebäck]

Add a cpplint filter in a new file CPPLINT.cfg to allow unapproved C++11 header such as <thread>. The reason cpplint disallows, 'cfenv', 'condition_variable', 'fenv.h', 'future', 'mutex', 'thread', 'chrono', 'ratio', 'regex', 'system_error' header files, seems to be due to in Chromium these overlaps with many classes in its base, which is not the case for OpenSAF.

[Hans Nordebäck]

commit d082d2fb2b26437bbe6860e8efff8479748378c2
Author: Hans Nordeback hans.nordeback@ericsson.com
Date: Tue Jan 16 12:54:55 2018 +0100

build: Add cpplint filter to allow unapproved C++11 header [#2760]