oe-selftest: add tests for C and C++ build tools

oe-selftest: add tests for C and C++ build tools

Add new file for C and C++ build tools. The initial implemmentation
contains a class for CMake and one for Meson. At least these first
tests for the qemu-usermode share most of the code. That's why there
is only one c_ccp.py file and not for example a cmake.py and a
meson.py file.

Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>