This commit updates all in-tree code to use `CONFIG_CPP_EXCEPTIONS`
instead of `CONFIG_EXCEPTIONS`, which is now deprecated.
Signed-off-by: Stephanos Ioannidis <stephanos.ioannidis@nordicsemi.no>
This commit moves the C++ library tests under `tests/subsys/cpp` to
`tests/lib/cpp` now that the C++ library has been relocated to
`lib/cpp`.
Signed-off-by: Stephanos Ioannidis <stephanos.ioannidis@nordicsemi.no>