Describe the samples using code-sample directive in preparation for
upcoming changes to the Zephyr documentation that will be leveraging
the provided description and metadata.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
During testing I've found one bad path and looked if
there is more.
I've used this oneliner to find more:
```
rg :zephyr-app: | awk '{ print $3 }' | while read dir
do
test -d $dir || echo $dir
done | grep '^samples' | grep -v '<' | sort | uniq
```
Signed-off-by: Nerijus Bendžiūnas <nerijus.bendziunas@gmail.com>
This commit moves the C++ samples under `samples/subsys/cpp` to
`samples/cpp` because the C++ language and standard library support is
not a "subsystem" (aka. API) in conventional sense and the samples
demonstrating them should belong directly under the top samples
directory as does POSIX support.
Signed-off-by: Stephanos Ioannidis <stephanos.ioannidis@nordicsemi.no>
