Align the capitalization of the term "Bluetooth Mesh" to Bluetooth mesh"
in the documentation. This is done to to match the new updated naming
convention done in Bluetooth SIG. In the upcoming spec versions, it its
used "Bluetooth mesh" with the lower case convention.
Signed-off-by: Ingar Kulbrandstad <ingar.kulbrandstad@nordicsemi.no>
The implementation of blocking calls is common for all the client
models.
This change reduces the code duplication by introducing new API that
helps to manage acknowledged messages.
Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>
