First version of C++ SDL API.
Refer README file for instructions how to generate API documentation.
Current version will find database via environment variables, thus RIC
DBaaS service must be up and running before starting the application
pod which uses SDL C++ API.
Change-Id: Ia3c95ac856b293827b680a9f6451a229f69f35f9
Signed-off-by: Rolf Badorek <rolf.badorek@nokia.com>